7961a2d840b58a86885b5e4bdee4ebd32a1e23ec3abbd0581657ae758a1fdf8c

Analysis

max time kernel
121s
max time network
125s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22/02/2024, 12:43

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General

Target

2024-02-22_6ebc782edbe33695f906dea28d0f0ad4_cryptolocker.exe
Size

57KB
MD5

6ebc782edbe33695f906dea28d0f0ad4
SHA1

3b60274fe0c86c1e36eebcfbffcb2cd03c393d6b
SHA256

7961a2d840b58a86885b5e4bdee4ebd32a1e23ec3abbd0581657ae758a1fdf8c
SHA512

2f95e966b520bc8c29ece739863fb0c64194e21b6245c68c45a669a5a8271db3555d1715b8389274b2d299cb835459c94d95916ac08e620a285b3ce1daa6f961
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUH/:btng54SMLr+/AO/kIhfoKMHda

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012255-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2316	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2952	2024-02-22_6ebc782edbe33695f906dea28d0f0ad4_cryptolocker.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
2952	2024-02-22_6ebc782edbe33695f906dea28d0f0ad4_cryptolocker.exe
2316	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2952 wrote to memory of 2316	2952	2024-02-22_6ebc782edbe33695f906dea28d0f0ad4_cryptolocker.exe	28
PID 2952 wrote to memory of 2316	2952	2024-02-22_6ebc782edbe33695f906dea28d0f0ad4_cryptolocker.exe	28
PID 2952 wrote to memory of 2316	2952	2024-02-22_6ebc782edbe33695f906dea28d0f0ad4_cryptolocker.exe	28
PID 2952 wrote to memory of 2316	2952	2024-02-22_6ebc782edbe33695f906dea28d0f0ad4_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-22_6ebc782edbe33695f906dea28d0f0ad4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_6ebc782edbe33695f906dea28d0f0ad4_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2952
- 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:2316

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

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

Filesize
57KB

MD5
c2827462cb8d3526e4c85a33dae1e836

SHA1
8671890332b0eb935ab06f4bfb749bd985736c5f

SHA256
87ea6bf9c1d76851b9f27d88836f7ab615c6a3a78c24e47074851bd639f76a11

SHA512
b14c653e15e38c867bd6ff9a16b90f4f2f36436895d7fd62f5e4b88496259d28efc1eb36ca4f43f8bd8aac7b84de199fecbff1ea6b9d9073babaac448c8cdf7a

Download Submit
memory/2316-16-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2952-0-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/2952-1-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/2952-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download