9951aff5b44efb3850fee578e8d6dbc6637ed49512655066713f016de2fe10c2

Analysis

max time kernel
118s
max time network
124s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
21-02-2024 14:42

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General

Target

2024-02-21_7e6e384f14e83024e37d0a99e4cfbd65_cryptolocker.exe
Size

60KB
MD5

7e6e384f14e83024e37d0a99e4cfbd65
SHA1

45496cb518f0f6804e01359106e676cee2482ea4
SHA256

9951aff5b44efb3850fee578e8d6dbc6637ed49512655066713f016de2fe10c2
SHA512

3497982f9cd0e24a2f26795b830a4c01eb9b9b842a850870bd8f7791b4d1f79f83c7714e5335b3a0976adeea93437a59445e0d7b0e060263c6290b58af227748
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHNi:btng54SMLr+/AO/kIhfoKMHdl

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000122fe-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2760	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1040	2024-02-21_7e6e384f14e83024e37d0a99e4cfbd65_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
1040	2024-02-21_7e6e384f14e83024e37d0a99e4cfbd65_cryptolocker.exe
2760	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1040 wrote to memory of 2760	1040	2024-02-21_7e6e384f14e83024e37d0a99e4cfbd65_cryptolocker.exe	28
PID 1040 wrote to memory of 2760	1040	2024-02-21_7e6e384f14e83024e37d0a99e4cfbd65_cryptolocker.exe	28
PID 1040 wrote to memory of 2760	1040	2024-02-21_7e6e384f14e83024e37d0a99e4cfbd65_cryptolocker.exe	28
PID 1040 wrote to memory of 2760	1040	2024-02-21_7e6e384f14e83024e37d0a99e4cfbd65_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-21_7e6e384f14e83024e37d0a99e4cfbd65_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-21_7e6e384f14e83024e37d0a99e4cfbd65_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1040
- 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:2760

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
60KB

MD5
13f1439f797df84ca4617eab8c604a22

SHA1
2323d3d6ef7dc19ee7ac8ce2293c34b5097eb321

SHA256
ac9f1731f27327e4a5ea7944344cfada2c08a1d41f5b82630f7ff3f62a0d7ae8

SHA512
ff811ea08e1703a0d6c25f78e28a24ef829da536bb072f42c63bd09b767adcba0e38147b6055d0f0617b5af6b56bf4a7c3382bc2b66f17a21400db461214f60a

Download Submit
memory/1040-0-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/1040-2-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/1040-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2760-16-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download