a44f583783912034a3a579bec64108b6170a861eb618e8772c7f8ac0a93fea0c

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
04/02/2024, 05:22

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General

Target

2024-02-04_02150171465604c809e2f1bf6f13651a_cryptolocker.exe
Size

37KB
MD5

02150171465604c809e2f1bf6f13651a
SHA1

61dc85f138b7d5947854184f108c74472abd1f63
SHA256

a44f583783912034a3a579bec64108b6170a861eb618e8772c7f8ac0a93fea0c
SHA512

234bf267e9a1afa4d923490387b0133b58722a64e081a24744d345812ef736af56cfc453fcbf21e5bc07d06f7032e234c57068aa1d561d37b28e9b7e27deb2de
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen7JEgx3OC:bxNrC7kYo1Fxf3s06gYC

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012242-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2548	pissa.exe

Loads dropped DLL 1 IoCs

pid	Process
1972	2024-02-04_02150171465604c809e2f1bf6f13651a_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 1972 wrote to memory of 2548	1972	2024-02-04_02150171465604c809e2f1bf6f13651a_cryptolocker.exe	28
PID 1972 wrote to memory of 2548	1972	2024-02-04_02150171465604c809e2f1bf6f13651a_cryptolocker.exe	28
PID 1972 wrote to memory of 2548	1972	2024-02-04_02150171465604c809e2f1bf6f13651a_cryptolocker.exe	28
PID 1972 wrote to memory of 2548	1972	2024-02-04_02150171465604c809e2f1bf6f13651a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-04_02150171465604c809e2f1bf6f13651a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-04_02150171465604c809e2f1bf6f13651a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1972
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:2548

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\pissa.exe

Filesize
37KB

MD5
b320d4902f02bab39fc61f41150aa2eb

SHA1
283f16cfc61f8c51c72554ddad7d16cc495050e6

SHA256
4dbf4e789f3f6acbf7eb51da5becf52828da30239e66e62db91af190d4dfabc3

SHA512
7fb10cc746d0239d843e31e6b324552ed0b7b58bad9b3fd00362f4beae782053508165c60458f57467790d820e6ada5b452250dd168a6022144b3edde6826d72

Download Submit
memory/1972-0-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/1972-1-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/1972-2-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/2548-15-0x0000000001CB0000-0x0000000001CB6000-memory.dmp

Filesize
24KB

Download
memory/2548-22-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download