a7140dc76632fd7de60b4f83b0be552774b4f71ab58d215a99b905d3fb258cc3

General

Target

a7140dc76632fd7de60b4f83b0be552774b4f71ab58d215a99b905d3fb258cc3.exe
Size

2.2MB
MD5

e598450e72082c9e7456abbc5ec2792a
SHA1

65b004025ac5aa0210db8037ffe7315df2ab33c1
SHA256

a7140dc76632fd7de60b4f83b0be552774b4f71ab58d215a99b905d3fb258cc3
SHA512

3f83e537fa387d536d6a58c95230c1d78494123e5dcfa964181108a27bbed865427e168c7cb78f94a1bef26a7f36a564a8cbc655c147e865158c360d112352a2
SSDEEP

12288:x10P7S7UgCDBR+RM42znzqzsY6hCyTyc8J97gqSBSrfR6IoSBIp9Z+4/rHAuFoeB:gqSBSrfR6KUZ+4D7Foe27wATj0uu

Score

8^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
816	b2e.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1032-60-0x0000000000400000-0x0000000000628000-memory.dmp	upx

Loads dropped DLL 5 IoCs

pid	Process
1032	a7140dc76632fd7de60b4f83b0be552774b4f71ab58d215a99b905d3fb258cc3.exe
1032	a7140dc76632fd7de60b4f83b0be552774b4f71ab58d215a99b905d3fb258cc3.exe
872	WerFault.exe
872	WerFault.exe
872	WerFault.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
872	816	WerFault.exe	28

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1032 wrote to memory of 816	1032	a7140dc76632fd7de60b4f83b0be552774b4f71ab58d215a99b905d3fb258cc3.exe	28
PID 1032 wrote to memory of 816	1032	a7140dc76632fd7de60b4f83b0be552774b4f71ab58d215a99b905d3fb258cc3.exe	28
PID 1032 wrote to memory of 816	1032	a7140dc76632fd7de60b4f83b0be552774b4f71ab58d215a99b905d3fb258cc3.exe	28
PID 1032 wrote to memory of 816	1032	a7140dc76632fd7de60b4f83b0be552774b4f71ab58d215a99b905d3fb258cc3.exe	28
PID 816 wrote to memory of 872	816	b2e.exe	29
PID 816 wrote to memory of 872	816	b2e.exe	29
PID 816 wrote to memory of 872	816	b2e.exe	29
PID 816 wrote to memory of 872	816	b2e.exe	29

C:\Users\Admin\AppData\Local\Temp\a7140dc76632fd7de60b4f83b0be552774b4f71ab58d215a99b905d3fb258cc3.exe
"C:\Users\Admin\AppData\Local\Temp\a7140dc76632fd7de60b4f83b0be552774b4f71ab58d215a99b905d3fb258cc3.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1032
- C:\Users\Admin\AppData\Local\Temp\F049.tmp\b2e.exe
  "C:\Users\Admin\AppData\Local\Temp\F049.tmp\b2e.exe" C:\Users\Admin\AppData\Local\Temp\F049.tmp\b2e.exe C:\Users\Admin\AppData\Local\Temp "C:\Users\Admin\AppData\Local\Temp\a7140dc76632fd7de60b4f83b0be552774b4f71ab58d215a99b905d3fb258cc3.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:816
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 816 -s 124
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:872

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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\F049.tmp\b2e.exe

Filesize
1.3MB

MD5
47e45b199565c2f2d597b2702d013a3a

SHA1
fd2fbc0879d23470a60ce08d8843174d02cb3a94

SHA256
68d672fa81a2138adc21556cb8110ad245d4ede355e65640d69c183786331de9

SHA512
1010648969c682213bc1dd27e62b2a03da5509ab2c45e167f5b5926419b69d28f5f5b1568a4e2f53b18b0b00f85dc831bc5aeb8e9e368309ce52f1b46f7843a1

Download Submit
\Users\Admin\AppData\Local\Temp\F049.tmp\b2e.exe

Filesize
1.3MB

MD5
47e45b199565c2f2d597b2702d013a3a

SHA1
fd2fbc0879d23470a60ce08d8843174d02cb3a94

SHA256
68d672fa81a2138adc21556cb8110ad245d4ede355e65640d69c183786331de9

SHA512
1010648969c682213bc1dd27e62b2a03da5509ab2c45e167f5b5926419b69d28f5f5b1568a4e2f53b18b0b00f85dc831bc5aeb8e9e368309ce52f1b46f7843a1

Download Submit
\Users\Admin\AppData\Local\Temp\F049.tmp\b2e.exe

Filesize
1.3MB

MD5
47e45b199565c2f2d597b2702d013a3a

SHA1
fd2fbc0879d23470a60ce08d8843174d02cb3a94

SHA256
68d672fa81a2138adc21556cb8110ad245d4ede355e65640d69c183786331de9

SHA512
1010648969c682213bc1dd27e62b2a03da5509ab2c45e167f5b5926419b69d28f5f5b1568a4e2f53b18b0b00f85dc831bc5aeb8e9e368309ce52f1b46f7843a1

Download Submit
\Users\Admin\AppData\Local\Temp\F049.tmp\b2e.exe

Filesize
1.3MB

MD5
47e45b199565c2f2d597b2702d013a3a

SHA1
fd2fbc0879d23470a60ce08d8843174d02cb3a94

SHA256
68d672fa81a2138adc21556cb8110ad245d4ede355e65640d69c183786331de9

SHA512
1010648969c682213bc1dd27e62b2a03da5509ab2c45e167f5b5926419b69d28f5f5b1568a4e2f53b18b0b00f85dc831bc5aeb8e9e368309ce52f1b46f7843a1

Download Submit
\Users\Admin\AppData\Local\Temp\F049.tmp\b2e.exe

Filesize
1.3MB

MD5
47e45b199565c2f2d597b2702d013a3a

SHA1
fd2fbc0879d23470a60ce08d8843174d02cb3a94

SHA256
68d672fa81a2138adc21556cb8110ad245d4ede355e65640d69c183786331de9

SHA512
1010648969c682213bc1dd27e62b2a03da5509ab2c45e167f5b5926419b69d28f5f5b1568a4e2f53b18b0b00f85dc831bc5aeb8e9e368309ce52f1b46f7843a1

Download Submit
\Users\Admin\AppData\Local\Temp\F049.tmp\b2e.exe

Filesize
1.3MB

MD5
47e45b199565c2f2d597b2702d013a3a

SHA1
fd2fbc0879d23470a60ce08d8843174d02cb3a94

SHA256
68d672fa81a2138adc21556cb8110ad245d4ede355e65640d69c183786331de9

SHA512
1010648969c682213bc1dd27e62b2a03da5509ab2c45e167f5b5926419b69d28f5f5b1568a4e2f53b18b0b00f85dc831bc5aeb8e9e368309ce52f1b46f7843a1

Download Submit
memory/816-64-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/1032-54-0x0000000076711000-0x0000000076713000-memory.dmp

Filesize
8KB

Download
memory/1032-60-0x0000000000400000-0x0000000000628000-memory.dmp

Filesize
2.2MB

Download

Analysis

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