b82a4117b2e4662f01efa2ede0fafacbc1020fb1fdcbbbffd11db2c684de8682

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240319-en
resource tags

arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
submitted
26/03/2024, 14:24

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General

Target

2024-03-26_186ab583c8afd4d9b7bc845b57b4cadf_cryptolocker.exe
Size

43KB
MD5

186ab583c8afd4d9b7bc845b57b4cadf
SHA1

0169b82b25223613e0a28366b9afd38479233ce4
SHA256

b82a4117b2e4662f01efa2ede0fafacbc1020fb1fdcbbbffd11db2c684de8682
SHA512

d52b2fba32761ebaa4cf66ace96dd69ec0d66697236bc3b04596bddafff9b68e142cb8478e5937c46f0c6af20d99dd1515028ac19ddb24d525f6e7cd99077904
SSDEEP

768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPu:P6QFElP6k+MRQMOtEvwDpjBQpVXb

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2308-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b0000000121c5-11.dat	CryptoLocker_rule2
behavioral1/memory/2308-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2788-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2788-25-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2308-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b0000000121c5-11.dat	CryptoLocker_set1
behavioral1/memory/2308-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2788-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2788-25-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2788	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2308	2024-03-26_186ab583c8afd4d9b7bc845b57b4cadf_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 2308 wrote to memory of 2788	2308	2024-03-26_186ab583c8afd4d9b7bc845b57b4cadf_cryptolocker.exe	28
PID 2308 wrote to memory of 2788	2308	2024-03-26_186ab583c8afd4d9b7bc845b57b4cadf_cryptolocker.exe	28
PID 2308 wrote to memory of 2788	2308	2024-03-26_186ab583c8afd4d9b7bc845b57b4cadf_cryptolocker.exe	28
PID 2308 wrote to memory of 2788	2308	2024-03-26_186ab583c8afd4d9b7bc845b57b4cadf_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-26_186ab583c8afd4d9b7bc845b57b4cadf_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-26_186ab583c8afd4d9b7bc845b57b4cadf_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2308
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2788

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
44KB

MD5
9a68e7b5827c1b5df143f733110b9c63

SHA1
4c50b93ed93c55d242eeb0e420abd643f6f4a360

SHA256
3c121d82a1dca60199535119af9cdd07aa8ac834ebc389042d70d0f9aec907d5

SHA512
02f5bddcc37a8d5c0f715c603e27168521c3a78605d24712f4e9c9c63af82da94a57803ce437619458d1566f36bbb727bdc3835fb1ed1d733c006c11886f1256

Download Submit
memory/2308-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2308-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2308-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2308-4-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2308-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2788-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2788-18-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2788-25-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download