0f08db1116c81bef04d7f0db2023b8e3b9915a2dfe50acf4e22d3967a8c362a8

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
02/09/2023, 17:15

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General

Target

2023-08-22_576ea9e56313d7e8ce4035014e19caa2_cryptolocker_JC.exe
Size

40KB
MD5

576ea9e56313d7e8ce4035014e19caa2
SHA1

081c1469f1405bb401a9b3aa7b86b4e2dfcd1802
SHA256

0f08db1116c81bef04d7f0db2023b8e3b9915a2dfe50acf4e22d3967a8c362a8
SHA512

2c6e219fac20ce60e63b5ed5f6df952a355dfe17ed206d35cdb1dff5bcdd02f310891c032ae395d5a3177eec8d95331ad73f8ace7df1614e86ae8458ec18f5bb
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2B94IOMHo3sxP1T7:btB9g/WItCSsAGjX7r3BPOMHoc/QQJl

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2668	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1644	2023-08-22_576ea9e56313d7e8ce4035014e19caa2_cryptolocker_JC.exe

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

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1644	2023-08-22_576ea9e56313d7e8ce4035014e19caa2_cryptolocker_JC.exe
2668	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1644 wrote to memory of 2668	1644	2023-08-22_576ea9e56313d7e8ce4035014e19caa2_cryptolocker_JC.exe	28
PID 1644 wrote to memory of 2668	1644	2023-08-22_576ea9e56313d7e8ce4035014e19caa2_cryptolocker_JC.exe	28
PID 1644 wrote to memory of 2668	1644	2023-08-22_576ea9e56313d7e8ce4035014e19caa2_cryptolocker_JC.exe	28
PID 1644 wrote to memory of 2668	1644	2023-08-22_576ea9e56313d7e8ce4035014e19caa2_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\2023-08-22_576ea9e56313d7e8ce4035014e19caa2_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\2023-08-22_576ea9e56313d7e8ce4035014e19caa2_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1644
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2668

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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\gewos.exe

Filesize
40KB

MD5
96d7cd049f1ad5af31994f93e4ba4d65

SHA1
148b0d2b70fadaf9f254a6396ee09f22dc8a9fd1

SHA256
5a2c62e0de19c536b9c84150ca63a5b6ab4ffb0c3f6c65c11d7570ad60697387

SHA512
01a7674bc9bc03411f0c776a38fd6cd930e44f6a2f2c69c000d593f92acfcb618d3c6503878ff7708f36cbf05fd9444e3d6b8e780230ad43f76c7c2e92c939c2

Download Submit
C:\Users\Admin\AppData\Local\Temp\gewos.exe

Filesize
40KB

MD5
96d7cd049f1ad5af31994f93e4ba4d65

SHA1
148b0d2b70fadaf9f254a6396ee09f22dc8a9fd1

SHA256
5a2c62e0de19c536b9c84150ca63a5b6ab4ffb0c3f6c65c11d7570ad60697387

SHA512
01a7674bc9bc03411f0c776a38fd6cd930e44f6a2f2c69c000d593f92acfcb618d3c6503878ff7708f36cbf05fd9444e3d6b8e780230ad43f76c7c2e92c939c2

Download Submit
\Users\Admin\AppData\Local\Temp\gewos.exe

Filesize
40KB

MD5
96d7cd049f1ad5af31994f93e4ba4d65

SHA1
148b0d2b70fadaf9f254a6396ee09f22dc8a9fd1

SHA256
5a2c62e0de19c536b9c84150ca63a5b6ab4ffb0c3f6c65c11d7570ad60697387

SHA512
01a7674bc9bc03411f0c776a38fd6cd930e44f6a2f2c69c000d593f92acfcb618d3c6503878ff7708f36cbf05fd9444e3d6b8e780230ad43f76c7c2e92c939c2

Download Submit
memory/1644-0-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/1644-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1644-2-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/2668-16-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download