2699c2f79da94ce9238b513a2286a3c990dae7f4dd4a41f66dc4853891f59df8

Analysis

max time kernel
151s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
25-11-2022 11:54

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General

Target

2699c2f79da94ce9238b513a2286a3c990dae7f4dd4a41f66dc4853891f59df8.exe
Size

1.9MB
MD5

a321021b6ce5b4d21e091f7e2987a789
SHA1

b84097a32f6d91293673f1378ced247e7235ce5c
SHA256

2699c2f79da94ce9238b513a2286a3c990dae7f4dd4a41f66dc4853891f59df8
SHA512

f25774fe69c9717d3a1a0d9e0f8f9fc4f761e1abc1670aafcbd3899c37d4710000128c2dbe1ce4fd2783c4a4996dfe982ae6f0270ba7218a6775d6c2f57806fb
SSDEEP

49152:zFPtJoxE+gzbh/61PMDOt1881FJAj7aP0MggW/ceS8FCwtfdUCf0YFb:z32gzbB61PMqt281FJAj7aP0Mg7/ceSI

Score

9^/10

persistence upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x00030000000006d1-133.dat	acprotect

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/764-132-0x0000000000400000-0x000000000076F000-memory.dmp	upx
behavioral2/files/0x00030000000006d1-133.dat	upx
behavioral2/memory/764-134-0x0000000010000000-0x000000001003D000-memory.dmp	upx
behavioral2/memory/764-135-0x0000000000400000-0x000000000076F000-memory.dmp	upx
behavioral2/memory/764-138-0x0000000000400000-0x000000000076F000-memory.dmp	upx

Loads dropped DLL 1 IoCs

pid	Process
764	2699c2f79da94ce9238b513a2286a3c990dae7f4dd4a41f66dc4853891f59df8.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

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

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\D:	2699c2f79da94ce9238b513a2286a3c990dae7f4dd4a41f66dc4853891f59df8.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft\Edge\Application\SetupMetrics\c3b7388d-1fb3-4c79-a69a-8ee1bf64711b.tmp	setup.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\SetupMetrics\20221125193417.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

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

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

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
764	2699c2f79da94ce9238b513a2286a3c990dae7f4dd4a41f66dc4853891f59df8.exe
764	2699c2f79da94ce9238b513a2286a3c990dae7f4dd4a41f66dc4853891f59df8.exe
764	2699c2f79da94ce9238b513a2286a3c990dae7f4dd4a41f66dc4853891f59df8.exe
764	2699c2f79da94ce9238b513a2286a3c990dae7f4dd4a41f66dc4853891f59df8.exe
3444	msedge.exe
3444	msedge.exe
1336	msedge.exe
1336	msedge.exe
400	identity_helper.exe
400	identity_helper.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs

pid	Process
1336	msedge.exe
1336	msedge.exe
1336	msedge.exe
1336	msedge.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1336	msedge.exe
1336	msedge.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
764	2699c2f79da94ce9238b513a2286a3c990dae7f4dd4a41f66dc4853891f59df8.exe
764	2699c2f79da94ce9238b513a2286a3c990dae7f4dd4a41f66dc4853891f59df8.exe
764	2699c2f79da94ce9238b513a2286a3c990dae7f4dd4a41f66dc4853891f59df8.exe
764	2699c2f79da94ce9238b513a2286a3c990dae7f4dd4a41f66dc4853891f59df8.exe
764	2699c2f79da94ce9238b513a2286a3c990dae7f4dd4a41f66dc4853891f59df8.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 764 wrote to memory of 1336	764	2699c2f79da94ce9238b513a2286a3c990dae7f4dd4a41f66dc4853891f59df8.exe	85
PID 764 wrote to memory of 1336	764	2699c2f79da94ce9238b513a2286a3c990dae7f4dd4a41f66dc4853891f59df8.exe	85
PID 1336 wrote to memory of 1420	1336	msedge.exe	86
PID 1336 wrote to memory of 1420	1336	msedge.exe	86
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 1684	1336	msedge.exe	87
PID 1336 wrote to memory of 3444	1336	msedge.exe	88
PID 1336 wrote to memory of 3444	1336	msedge.exe	88
PID 1336 wrote to memory of 1432	1336	msedge.exe	89
PID 1336 wrote to memory of 1432	1336	msedge.exe	89
PID 1336 wrote to memory of 1432	1336	msedge.exe	89
PID 1336 wrote to memory of 1432	1336	msedge.exe	89
PID 1336 wrote to memory of 1432	1336	msedge.exe	89
PID 1336 wrote to memory of 1432	1336	msedge.exe	89
PID 1336 wrote to memory of 1432	1336	msedge.exe	89
PID 1336 wrote to memory of 1432	1336	msedge.exe	89
PID 1336 wrote to memory of 1432	1336	msedge.exe	89
PID 1336 wrote to memory of 1432	1336	msedge.exe	89
PID 1336 wrote to memory of 1432	1336	msedge.exe	89
PID 1336 wrote to memory of 1432	1336	msedge.exe	89
PID 1336 wrote to memory of 1432	1336	msedge.exe	89
PID 1336 wrote to memory of 1432	1336	msedge.exe	89
PID 1336 wrote to memory of 1432	1336	msedge.exe	89
PID 1336 wrote to memory of 1432	1336	msedge.exe	89
PID 1336 wrote to memory of 1432	1336	msedge.exe	89
PID 1336 wrote to memory of 1432	1336	msedge.exe	89

C:\Users\Admin\AppData\Local\Temp\2699c2f79da94ce9238b513a2286a3c990dae7f4dd4a41f66dc4853891f59df8.exe
"C:\Users\Admin\AppData\Local\Temp\2699c2f79da94ce9238b513a2286a3c990dae7f4dd4a41f66dc4853891f59df8.exe"
1⤵
- Loads dropped DLL
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:764
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://www.mumu168.com/kuangfeng
  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:1336
- - 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=0xf8,0xfc,0x100,0xd4,0x104,0x7ff8cce946f8,0x7ff8cce94708,0x7ff8cce94718
    3⤵
    PID:1420
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2156,5222288009912874491,692248609623692796,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2192 /prefetch:2
    3⤵
    PID:1684
- - 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=2156,5222288009912874491,692248609623692796,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2452 /prefetch:3
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:3444
- - 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=2156,5222288009912874491,692248609623692796,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2720 /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=2156,5222288009912874491,692248609623692796,131072 --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=3348 /prefetch:1
    3⤵
    PID:3460
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2156,5222288009912874491,692248609623692796,131072 --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:2224
- - 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=2156,5222288009912874491,692248609623692796,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5872 /prefetch:8
    3⤵
    PID:620
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2156,5222288009912874491,692248609623692796,131072 --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=5908 /prefetch:1
    3⤵
    PID:1984
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2156,5222288009912874491,692248609623692796,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5948 /prefetch:1
    3⤵
    PID:4976
- - 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=2156,5222288009912874491,692248609623692796,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6276 /prefetch:8
    3⤵
    PID:4300
- - 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:1332
  - - 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=0x268,0x26c,0x270,0x228,0x274,0x7ff7932f5460,0x7ff7932f5470,0x7ff7932f5480
      4⤵
      PID:4028
- - 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=2156,5222288009912874491,692248609623692796,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6276 /prefetch:8
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:400

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4040

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\SkinH_EL.dll

Filesize
86KB

MD5
147127382e001f495d1842ee7a9e7912

SHA1
92d1ed56032183c75d4b57d7ce30b1c4ae11dc9b

SHA256
edf679c02ea2e170e67ab20dfc18558e2bfb4ee5d59eceeaea4b1ad1a626c3cc

SHA512
97f5ae90a1bbacfe39b9e0f2954c24f9896cc9dca9d14364c438862996f3bbc04a4aa515742fccb3679d222c1302f5bb40c7eaddd6b5859d2d6ef79490243a4d

Download Submit
memory/400-157-0x0000000000000000-mapping.dmp

Download
memory/620-150-0x0000000000000000-mapping.dmp

Download
memory/764-135-0x0000000000400000-0x000000000076F000-memory.dmp

Filesize
3.4MB

Download
memory/764-138-0x0000000000400000-0x000000000076F000-memory.dmp

Filesize
3.4MB

Download
memory/764-132-0x0000000000400000-0x000000000076F000-memory.dmp

Filesize
3.4MB

Download
memory/764-134-0x0000000010000000-0x000000001003D000-memory.dmp

Filesize
244KB

Download
memory/1332-155-0x0000000000000000-mapping.dmp

Download
memory/1336-136-0x0000000000000000-mapping.dmp

Download
memory/1420-137-0x0000000000000000-mapping.dmp

Download
memory/1432-144-0x0000000000000000-mapping.dmp

Download
memory/1684-140-0x0000000000000000-mapping.dmp

Download
memory/1984-152-0x0000000000000000-mapping.dmp

Download
memory/2224-148-0x0000000000000000-mapping.dmp

Download
memory/3444-141-0x0000000000000000-mapping.dmp

Download
memory/3460-146-0x0000000000000000-mapping.dmp

Download
memory/4028-156-0x0000000000000000-mapping.dmp

Download
memory/4976-154-0x0000000000000000-mapping.dmp

Download