a36790ce0d887df585de01aefea6d54ef3fe1df6079a4746c874986f9645f756

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
30/04/2024, 20:32

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General

Target

2024-04-30_d4aa87fb10178bcbb00db7323cfea0d2_cryptolocker.exe
Size

45KB
MD5

d4aa87fb10178bcbb00db7323cfea0d2
SHA1

1615e1c539bd388e38f5273e654d48f44c4da047
SHA256

a36790ce0d887df585de01aefea6d54ef3fe1df6079a4746c874986f9645f756
SHA512

5f1895d398f0b697921b73d31efa9a1a8260a218117062d81379b7c9c3c732e0b65fb252b05d3dc498b3f1a8939de86a9d8de01bbcd7afce049524b2f998e2db
SSDEEP

768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPoKTP:P6QFElP6k+MRQMOtEvwDpjBQpVXzO

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2924-8-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000f000000012331-11.dat	CryptoLocker_rule2
behavioral1/memory/2924-13-0x00000000022B0000-0x00000000022BB000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2548-25-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2924-8-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000f000000012331-11.dat	CryptoLocker_set1
behavioral1/memory/2924-13-0x00000000022B0000-0x00000000022BB000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2548-25-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2548	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2924	2024-04-30_d4aa87fb10178bcbb00db7323cfea0d2_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 2924 wrote to memory of 2548	2924	2024-04-30_d4aa87fb10178bcbb00db7323cfea0d2_cryptolocker.exe	28
PID 2924 wrote to memory of 2548	2924	2024-04-30_d4aa87fb10178bcbb00db7323cfea0d2_cryptolocker.exe	28
PID 2924 wrote to memory of 2548	2924	2024-04-30_d4aa87fb10178bcbb00db7323cfea0d2_cryptolocker.exe	28
PID 2924 wrote to memory of 2548	2924	2024-04-30_d4aa87fb10178bcbb00db7323cfea0d2_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-30_d4aa87fb10178bcbb00db7323cfea0d2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_d4aa87fb10178bcbb00db7323cfea0d2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2924
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.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\asih.exe

Filesize
46KB

MD5
b59d0748389d1a3fdd85980e6e1115af

SHA1
cfffb68959427c9f40f0b042ce501a9a437dc54d

SHA256
4e400a53ce897ec5aae796b731ce49972c5af23fd6c29cd14fe12f7908e0f6ce

SHA512
3ec6b5c40cc937f3efca05a6b8972f4ceef491eadb35cb2df6e78f9f26b30714a3210eb4153af0caf83bd535b2581e03cd2e62f07e1d9138cfe1e17e153abc5e

Download Submit
memory/2548-17-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2548-25-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2548-24-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2924-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2924-1-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2924-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2924-8-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2924-13-0x00000000022B0000-0x00000000022BB000-memory.dmp

Filesize
44KB

Download