7f26de07176f6ab04a45252cc78849ed641dc15c91078fda7b00768b701262d8

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
20/02/2024, 01:28

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General

Target

2024-02-20_27f1144b13052c411fb61cc970376c3b_cryptolocker.exe
Size

41KB
MD5

27f1144b13052c411fb61cc970376c3b
SHA1

cd54c365c4c15a7caeb47bff8b020beea1729d4c
SHA256

7f26de07176f6ab04a45252cc78849ed641dc15c91078fda7b00768b701262d8
SHA512

bd961db74afce5e7adf07584c845b1f0aa772a84d7b6370fed96306f969985739efff65e6d37d789d9977488854c791004e1578848d8690a85075e8e7079c7cd
SSDEEP

384:e/4wODQkzonAYsju5N/surDQtOOtEvwDpjqIGROqS/Wcz0BVFHxzV:79inqyNR/QtOOtEvwDpjBKcmfxB

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2004-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a000000012238-11.dat	CryptoLocker_rule2
behavioral1/memory/2004-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2676-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2004-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a000000012238-11.dat	CryptoLocker_set1
behavioral1/memory/2004-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2676-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2676	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2004	2024-02-20_27f1144b13052c411fb61cc970376c3b_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 2004 wrote to memory of 2676	2004	2024-02-20_27f1144b13052c411fb61cc970376c3b_cryptolocker.exe	28
PID 2004 wrote to memory of 2676	2004	2024-02-20_27f1144b13052c411fb61cc970376c3b_cryptolocker.exe	28
PID 2004 wrote to memory of 2676	2004	2024-02-20_27f1144b13052c411fb61cc970376c3b_cryptolocker.exe	28
PID 2004 wrote to memory of 2676	2004	2024-02-20_27f1144b13052c411fb61cc970376c3b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-20_27f1144b13052c411fb61cc970376c3b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-20_27f1144b13052c411fb61cc970376c3b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2004
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2676

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
41KB

MD5
8151b3e3a1c9c1918e54d17b02081fa7

SHA1
e8bcb25f41f3ddbec64db7f9c5e0400cd5e58840

SHA256
5e9d87fb6f259f0a8469130c7cdd7648c33ef4810f5fbfde1c47092ad4ae9ee0

SHA512
64b0c46faad794ac434737fb66f7304f632c73ba4fc7ec42c2803c632d20a18276d0bee2cfc950f51ac7a5e4a61bdc9398efbb35c452c90534b65b5aaa9a05da

Download Submit
memory/2004-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2004-1-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2004-2-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2004-9-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2004-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2676-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2676-19-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2676-18-0x0000000001C90000-0x0000000001C96000-memory.dmp

Filesize
24KB

Download