eaa096de428566542044597764fc4e394469dbb5f9426e364cf4a3bd67cdbea4

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
13-02-2024 13:16

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General

Target

2024-02-13_e21a4ff16540f29e99e46f91c747f3d5_cryptolocker.exe
Size

62KB
MD5

e21a4ff16540f29e99e46f91c747f3d5
SHA1

16bf2564d0e45b926bd757e27c738f81683adf87
SHA256

eaa096de428566542044597764fc4e394469dbb5f9426e364cf4a3bd67cdbea4
SHA512

560ddae625bf73b505ad15761adbd4459e0657ec88a67d6d47280a35c9e9047c5f74ce2ffe0bf084171ca2131a0fe69e2c70378d16eab0d78a27ac914d80fad5
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVCbmhkX:V6a+pOtEvwDpjvC

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000015cfa-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000015cfa-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1768	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2220	2024-02-13_e21a4ff16540f29e99e46f91c747f3d5_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 2220 wrote to memory of 1768	2220	2024-02-13_e21a4ff16540f29e99e46f91c747f3d5_cryptolocker.exe	28
PID 2220 wrote to memory of 1768	2220	2024-02-13_e21a4ff16540f29e99e46f91c747f3d5_cryptolocker.exe	28
PID 2220 wrote to memory of 1768	2220	2024-02-13_e21a4ff16540f29e99e46f91c747f3d5_cryptolocker.exe	28
PID 2220 wrote to memory of 1768	2220	2024-02-13_e21a4ff16540f29e99e46f91c747f3d5_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-13_e21a4ff16540f29e99e46f91c747f3d5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-13_e21a4ff16540f29e99e46f91c747f3d5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2220
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1768

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
62KB

MD5
16837fb99a0540213a2a77e14820f2c2

SHA1
a16b7f506f33f37b36b195e2832a36d507c095f3

SHA256
e9dbd096c02b97bb8194b61c0eadcea87931fed066e9e0b34fb0d7bab502b615

SHA512
0da0af3eaf38a7400a025dc48f8b7b2a7d456686beda3c4776e362fa04a843d2e9f369bf5f7d2c710f95a2381191f686aa01445278d0304a8d45177ff80725f7

Download Submit
memory/1768-15-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/1768-19-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2220-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2220-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2220-1-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download