a3ec6e18338c461fb6881d04afa95c37f33c94904bf2e584b4da96b20bb890a2

General

Target

CS兼容版.exe
Size

4.6MB
MD5

14cb1a20f3a1c80d54097b869b60be2b
SHA1

4fe4df1106a3348e9af741f7299b41bae264c062
SHA256

faacca39637a719dba288bc92f3be3286c9e640c732ace142622b4f5bc6a6da9
SHA512

1237a9f4611ceece020a95190ad8713fae2027a8cb650be500472c723de7f4343e01305dbe0cbfa9b310cc3c215d63069312ad4b0221d1a0238ad5ce85a4c9d1
SSDEEP

98304:2sQCjTMmNgva64qvAu959oE8PJBAUZLLloM59oB818a8L:ZMmNQz9zonJV/3o3

Score

8^/10

persistence upx

Malware Config

Signatures

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/4416-132-0x0000000002BD0000-0x0000000002C42000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

Processes:

msedge.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run msedge.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run	msedge.exe

Drops file in Program Files directory 2 IoCs

Processes:

setup.exe

description	ioc	process
File created	C:\Program Files (x86)\Microsoft\Edge\Application\SetupMetrics\d28689c0-3f49-463e-a00a-17a840f011d4.tmp	setup.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\SetupMetrics\20221124204101.pma	setup.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

msedge.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	msedge.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	msedge.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	msedge.exe

Modifies registry class 1 IoCs

Processes:

msedge.exe

description ioc process

Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ msedge.exe
Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

CS兼容版.exemsedge.exemsedge.exeidentity_helper.exe

pid process

4416 CS兼容版.exe
4416 CS兼容版.exe
3704 msedge.exe
3704 msedge.exe
1312 msedge.exe
1312 msedge.exe
880 identity_helper.exe
880 identity_helper.exe
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs

Processes:

msedge.exe

pid process

1312 msedge.exe
1312 msedge.exe
1312 msedge.exe
1312 msedge.exe
1312 msedge.exe
1312 msedge.exe
1312 msedge.exe
Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

msedge.exe

pid process

1312 msedge.exe
1312 msedge.exe
1312 msedge.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

CS兼容版.exe

pid process

4416 CS兼容版.exe
4416 CS兼容版.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	msedge.exe

pid	process
4416	CS兼容版.exe
4416	CS兼容版.exe
3704	msedge.exe
3704	msedge.exe
1312	msedge.exe
1312	msedge.exe
880	identity_helper.exe
880	identity_helper.exe

pid	process
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe

pid	process
1312	msedge.exe
1312	msedge.exe
1312	msedge.exe

pid	process
4416	CS兼容版.exe
4416	CS兼容版.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

CS兼容版.exemsedge.exe

description	pid	process	target process
PID 4416 wrote to memory of 1312	4416	CS兼容版.exe	msedge.exe
PID 4416 wrote to memory of 1312	4416	CS兼容版.exe	msedge.exe
PID 1312 wrote to memory of 3176	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3176	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3136	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3704	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 3704	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 1468	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 1468	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 1468	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 1468	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 1468	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 1468	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 1468	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 1468	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 1468	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 1468	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 1468	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 1468	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 1468	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 1468	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 1468	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 1468	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 1468	1312	msedge.exe	msedge.exe
PID 1312 wrote to memory of 1468	1312	msedge.exe	msedge.exe

C:\Users\Admin\AppData\Local\Temp\CS兼容版.exe
"C:\Users\Admin\AppData\Local\Temp\CS兼容版.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4416

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://www.csokwy.com/
2⤵
- Adds Run key to start application
- Enumerates system info in registry
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1312

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0xb0,0xdc,0x100,0x40,0x104,0x7fffcf6e46f8,0x7fffcf6e4708,0x7fffcf6e4718
3⤵
PID:3176

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2128,11712402859543625494,2604070110213468850,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2200 /prefetch:2
3⤵
PID:3136

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=2128,11712402859543625494,2604070110213468850,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2272 /prefetch:3
3⤵
- Suspicious behavior: EnumeratesProcesses
PID:3704

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=2128,11712402859543625494,2604070110213468850,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2764 /prefetch:8
3⤵
PID:1468

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2128,11712402859543625494,2604070110213468850,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3352 /prefetch:1
3⤵
PID:796

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2128,11712402859543625494,2604070110213468850,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3356 /prefetch:1
3⤵
PID:3636

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=2128,11712402859543625494,2604070110213468850,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=4808 /prefetch:8
3⤵
PID:3236

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2128,11712402859543625494,2604070110213468850,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5408 /prefetch:1
3⤵
PID:4112

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2128,11712402859543625494,2604070110213468850,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5756 /prefetch:1
3⤵
PID:476

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2128,11712402859543625494,2604070110213468850,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5020 /prefetch:1
3⤵
PID:3908

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=2128,11712402859543625494,2604070110213468850,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5044 /prefetch:8
3⤵
PID:1432

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2128,11712402859543625494,2604070110213468850,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3388 /prefetch:1
3⤵
PID:4584

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2128,11712402859543625494,2604070110213468850,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=13 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=1464 /prefetch:1
3⤵
PID:1452

C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2128,11712402859543625494,2604070110213468850,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6488 /prefetch:8
3⤵
PID:872

C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --configure-user-settings --verbose-logging --system-level --msedge --force-configure-user-settings
3⤵
- Drops file in Program Files directory
PID:8

C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --type=crashpad-handler /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\TEMP\MsEdgeCrashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0x224,0x228,0x22c,0x200,0x230,0x7ff649185460,0x7ff649185470,0x7ff649185480
4⤵
PID:5116

C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2128,11712402859543625494,2604070110213468850,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6488 /prefetch:8
3⤵
- Suspicious behavior: EnumeratesProcesses
PID:880

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4416 -ip 4416
1⤵
PID:3640

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1784

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

2

T1082

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

\??\pipe\LOCAL\crashpad_1312_OKUEFDUVJSEOYTWH
MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
memory/8-164-0x0000000000000000-mapping.dmp

Download
memory/476-155-0x0000000000000000-mapping.dmp

Download
memory/796-147-0x0000000000000000-mapping.dmp

Download
memory/880-166-0x0000000000000000-mapping.dmp

Download
memory/1312-137-0x0000000000000000-mapping.dmp

Download
memory/1432-159-0x0000000000000000-mapping.dmp

Download
memory/1452-163-0x0000000000000000-mapping.dmp

Download
memory/1468-145-0x0000000000000000-mapping.dmp

Download
memory/3136-141-0x0000000000000000-mapping.dmp

Download
memory/3176-138-0x0000000000000000-mapping.dmp

Download
memory/3236-151-0x0000000000000000-mapping.dmp

Download
memory/3636-149-0x0000000000000000-mapping.dmp

Download
memory/3704-142-0x0000000000000000-mapping.dmp

Download
memory/3908-157-0x0000000000000000-mapping.dmp

Download
memory/4112-153-0x0000000000000000-mapping.dmp

Download
memory/4416-135-0x0000000000400000-0x00000000008D1000-memory.dmp

Filesize
4.8MB

Download
memory/4416-136-0x0000000002BD0000-0x0000000002C42000-memory.dmp

Filesize
456KB

Download
memory/4416-132-0x0000000002BD0000-0x0000000002C42000-memory.dmp

Filesize
456KB

Download
memory/4416-139-0x0000000000400000-0x00000000008D1000-memory.dmp

Filesize
4.8MB

Download
memory/4416-134-0x0000000002BD0000-0x0000000002C42000-memory.dmp

Filesize
456KB

Download
memory/4416-133-0x0000000000400000-0x00000000008D1000-memory.dmp

Filesize
4.8MB

Download
memory/4584-161-0x0000000000000000-mapping.dmp

Download
memory/5116-165-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads