906bcf226f132a7c1692f2abfa57a1c30faca7a840169f0cc57b168e6f8af8f8

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
26-01-2024 21:24

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General

Target

2024-01-26_7032c9e6d9c898b169750c425f5ef426_cryptolocker.exe
Size

59KB
MD5

7032c9e6d9c898b169750c425f5ef426
SHA1

4fdbc509b8e6607f46c050f5930640b0be34da63
SHA256

906bcf226f132a7c1692f2abfa57a1c30faca7a840169f0cc57b168e6f8af8f8
SHA512

a24f18b62bd968260b0215363e43c63e089364c920c73f073d0d11685d13b65b08f51727a9c8a1df8e88e181ebcedd3121b47fd6cb79106b6aacd4029b747d5c
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHxe:btng54SMLr+/AO/kIhfoKMHd1

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000014439-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2292	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2104	2024-01-26_7032c9e6d9c898b169750c425f5ef426_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
2104	2024-01-26_7032c9e6d9c898b169750c425f5ef426_cryptolocker.exe
2292	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2104 wrote to memory of 2292	2104	2024-01-26_7032c9e6d9c898b169750c425f5ef426_cryptolocker.exe	28
PID 2104 wrote to memory of 2292	2104	2024-01-26_7032c9e6d9c898b169750c425f5ef426_cryptolocker.exe	28
PID 2104 wrote to memory of 2292	2104	2024-01-26_7032c9e6d9c898b169750c425f5ef426_cryptolocker.exe	28
PID 2104 wrote to memory of 2292	2104	2024-01-26_7032c9e6d9c898b169750c425f5ef426_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-26_7032c9e6d9c898b169750c425f5ef426_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-26_7032c9e6d9c898b169750c425f5ef426_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2104
- 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:2292

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
59KB

MD5
c64465cfd137aa9910af0eeb9df1fa50

SHA1
da6a18a4ad3e4b5a6f8c990271fb1b6cb7da366d

SHA256
d2e5c530d8eb43deb227d22e8fe68f58755b44b1d19034c6ff307c6fcf6177a3

SHA512
a6b08da44b34a698cbca578ba83eea427dc1137dbb8c456667ae3b75dfac51464d849d7aacb59a835c5fce8540fac66a86315955a0b7b3c111d47bc1451e27fb

Download Submit
memory/2104-0-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/2104-2-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/2104-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2292-23-0x0000000001B40000-0x0000000001B46000-memory.dmp

Filesize
24KB

Download