fde56957b6193bd19e08e9aa3b584f591600e8f382d3a35147a30bf2dcadd9eb

General

Target

NFe35130560519634000187550010005208041116.dll
Size

541KB
MD5

c12eff8d72d6a7d0bccd4c3947ba1271
SHA1

351fee49a5207d1f16ddc036294b74cc98f06690
SHA256

7db12168db2668990a09c311b611c2f8f6b65451f48d92ac7a61ebb460a3d736
SHA512

314402d330f0c01b131fcc78287472ee496120c9ba526b87438908fd85000a771ebb11386392bf6ff2fba8c3a08179e6cf9c8a7b50b10dd4d7cb07dc1de81c37
SSDEEP

12288:gKXAyRw6k2wnnA9UhcOsyj/kidgR6ncbGUTLyEud6p2Qh5zb:6yRw6k20WU6yAp6cV3txh5zb

Score

5^/10

Malware Config

Signatures

Suspicious use of SetThreadContext 1 IoCs

Processes:

rundll32.exe

description pid process target process

PID 3808 set thread context of 4648 3808 rundll32.exe svchost.exe

description	pid	process	target process
PID 3808 set thread context of 4648	3808	rundll32.exe	svchost.exe

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 4 IoCs

Processes:

msedge.exemsedge.exe

pid process

2804 msedge.exe
2804 msedge.exe
1812 msedge.exe
1812 msedge.exe
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs

Processes:

msedge.exe

pid process

1812 msedge.exe
1812 msedge.exe
1812 msedge.exe
1812 msedge.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

msedge.exe

pid process

1812 msedge.exe

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

pid	process
2804	msedge.exe
2804	msedge.exe
1812	msedge.exe
1812	msedge.exe

pid	process
1812	msedge.exe
1812	msedge.exe
1812	msedge.exe
1812	msedge.exe

pid	process
1812	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

rundll32.exerundll32.exesvchost.exemsedge.exe

description	pid	process	target process
PID 564 wrote to memory of 3808	564	rundll32.exe	rundll32.exe
PID 564 wrote to memory of 3808	564	rundll32.exe	rundll32.exe
PID 564 wrote to memory of 3808	564	rundll32.exe	rundll32.exe
PID 3808 wrote to memory of 4648	3808	rundll32.exe	svchost.exe
PID 3808 wrote to memory of 4648	3808	rundll32.exe	svchost.exe
PID 3808 wrote to memory of 4648	3808	rundll32.exe	svchost.exe
PID 3808 wrote to memory of 4648	3808	rundll32.exe	svchost.exe
PID 3808 wrote to memory of 4648	3808	rundll32.exe	svchost.exe
PID 4648 wrote to memory of 1812	4648	svchost.exe	msedge.exe
PID 4648 wrote to memory of 1812	4648	svchost.exe	msedge.exe
PID 1812 wrote to memory of 2800	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 2800	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 3648	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 2804	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 2804	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 4660	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 4660	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 4660	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 4660	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 4660	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 4660	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 4660	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 4660	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 4660	1812	msedge.exe	msedge.exe
PID 1812 wrote to memory of 4660	1812	msedge.exe	msedge.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\NFe35130560519634000187550010005208041116.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:564

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\NFe35130560519634000187550010005208041116.dll,#1
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3808

C:\Windows\SysWOW64\svchost.exe
"C:\Windows\system32\svchost.exe"
3⤵
- Suspicious use of WriteProcessMemory
PID:4648

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://www.java.com/pt_BR/
4⤵
- Enumerates system info in registry
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1812

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=0x104,0xd8,0xdc,0xd4,0xe0,0x7ffbd65346f8,0x7ffbd6534708,0x7ffbd6534718
5⤵
PID:2800

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2088,9032983386381609303,9192852998452143264,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2080 /prefetch:2
5⤵
PID:3648

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=2088,9032983386381609303,9192852998452143264,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2356 /prefetch:3
5⤵
- Suspicious behavior: EnumeratesProcesses
PID:2804

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=2088,9032983386381609303,9192852998452143264,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2720 /prefetch:8
5⤵
PID:4660

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,9032983386381609303,9192852998452143264,131072 --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=3616 /prefetch:1
5⤵
PID:1312

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,9032983386381609303,9192852998452143264,131072 --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=3624 /prefetch:1
5⤵
PID:5096

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,9032983386381609303,9192852998452143264,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=7 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4640 /prefetch:1
5⤵
PID:4768

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,9032983386381609303,9192852998452143264,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5520 /prefetch:1
5⤵
PID:640

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2712

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\image.gif

Filesize
1KB

MD5
efed2d96aa5344910603f3538edbea7e

SHA1
c1988553afe101e4d6cbdb2901439ad01ddf4640

SHA256
7c4ccaca19175775f6fbeac19e6d6bb0497c40e76a774e5dfa481e3ccc66aed5

SHA512
b324b4e62b7f6f4334c06d40d9855bb602812be14fe41040572addbcf9a51a4a227bd63ef614242ecb15ebe89aa9304146710e4bc129b46e4a453b2b794e42ee

Download Submit
\??\pipe\LOCAL\crashpad_1812_PQKTNZWGOMYCSROI

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
memory/640-156-0x0000000000000000-mapping.dmp

Download
memory/1312-150-0x0000000000000000-mapping.dmp

Download
memory/1812-141-0x0000000000000000-mapping.dmp

Download
memory/2800-142-0x0000000000000000-mapping.dmp

Download
memory/2804-145-0x0000000000000000-mapping.dmp

Download
memory/3648-144-0x0000000000000000-mapping.dmp

Download
memory/3808-140-0x0000000005F20000-0x000000000602D000-memory.dmp

Filesize
1.1MB

Download
memory/3808-132-0x0000000000000000-mapping.dmp

Download
memory/3808-138-0x0000000005F20000-0x000000000602D000-memory.dmp

Filesize
1.1MB

Download
memory/4648-139-0x0000000008C60000-0x0000000008CBF000-memory.dmp

Filesize
380KB

Download
memory/4648-136-0x0000000008C60000-0x0000000008CBF000-memory.dmp

Filesize
380KB

Download
memory/4648-135-0x0000000008C60000-0x0000000008CBF000-memory.dmp

Filesize
380KB

Download
memory/4648-134-0x0000000008C60000-0x0000000008CBF000-memory.dmp

Filesize
380KB

Download
memory/4648-133-0x0000000000000000-mapping.dmp

Download
memory/4660-148-0x0000000000000000-mapping.dmp

Download
memory/4768-154-0x0000000000000000-mapping.dmp

Download
memory/5096-152-0x0000000000000000-mapping.dmp

Download

Analysis

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