d88cfba962e3af83234a113edcfdb823873d6843309f85b607881572155f2a2c

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
09-06-2024 02:45

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General

Target

2024-06-09_6ec5fe9e7270d6d98099791d8f4b9c5e_cryptolocker.exe
Size

46KB
MD5

6ec5fe9e7270d6d98099791d8f4b9c5e
SHA1

66676bb2adfc97d06155a8ab47b25c09f1721311
SHA256

d88cfba962e3af83234a113edcfdb823873d6843309f85b607881572155f2a2c
SHA512

8edf97dc28d582a099cbcb57c11108a49d28b79fe308fbb723271e14f93d3a7b34f048320a3afa90e39e70fb484596056b852d54293bd31fc3e7d2a38b7fbf95
SSDEEP

768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPow:P6QFElP6k+MRQMOtEvwDpjBQpVXzw

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1276-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000e00000001214d-11.dat	CryptoLocker_rule2
behavioral1/memory/2068-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1276-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2068-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1276-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000e00000001214d-11.dat	CryptoLocker_set1
behavioral1/memory/2068-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1276-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2068-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2068	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1276	2024-06-09_6ec5fe9e7270d6d98099791d8f4b9c5e_cryptolocker.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1276 wrote to memory of 2068	1276	2024-06-09_6ec5fe9e7270d6d98099791d8f4b9c5e_cryptolocker.exe	28
PID 1276 wrote to memory of 2068	1276	2024-06-09_6ec5fe9e7270d6d98099791d8f4b9c5e_cryptolocker.exe	28
PID 1276 wrote to memory of 2068	1276	2024-06-09_6ec5fe9e7270d6d98099791d8f4b9c5e_cryptolocker.exe	28
PID 1276 wrote to memory of 2068	1276	2024-06-09_6ec5fe9e7270d6d98099791d8f4b9c5e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-09_6ec5fe9e7270d6d98099791d8f4b9c5e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-09_6ec5fe9e7270d6d98099791d8f4b9c5e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1276
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2068

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\asih.exe

Filesize
47KB

MD5
7714029bbee27d57781c73429e677b8d

SHA1
f4859f88fc132539090d1e1f2f35bd3a86c749b4

SHA256
0560798f35b7e549fd3515fe3247bdcc36bb68de419fb5f756e253eb0777cec0

SHA512
719bda935d704919ee2a0d80b980451c9e2833b7b81c3d5c47cedaf27e81cdcb775ab601c978327152078c82eca72abf3dba29f2c03d37fbe7cfd2047a62cc82

Download Submit
memory/1276-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1276-3-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/1276-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1276-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1276-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2068-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2068-25-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2068-18-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/2068-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download