27d25f2bfe7bacd73722b1fa2f998075fcb4756f839794d916e58e2dc2c11b0c

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
26/05/2024, 06:36

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General

Target

2024-05-26_82721759c0af3065aab5a645f606c1a9_cryptolocker.exe
Size

44KB
MD5

82721759c0af3065aab5a645f606c1a9
SHA1

a01391e503ba106f27094d9140486916942d46bf
SHA256

27d25f2bfe7bacd73722b1fa2f998075fcb4756f839794d916e58e2dc2c11b0c
SHA512

982837c1339ca526b8a55eea42556d7856b7211aa96dfdb642692ce72a516d4b6a13eec07d4c386b3446d7abed3120224cd00c5c0ed19325e98fa3a17241db24
SSDEEP

384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jb0nrlwfjDUk7F:bm74zYcgT/EkM0ryfjd7F

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 6 IoCs

resource	yara_rule
behavioral1/memory/2244-0-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a000000012286-11.dat	CryptoLocker_rule2
behavioral1/memory/2244-13-0x0000000001EB0000-0x0000000001EBD000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2244-16-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2348-17-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2348-27-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2348	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2244	2024-05-26_82721759c0af3065aab5a645f606c1a9_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 2244 wrote to memory of 2348	2244	2024-05-26_82721759c0af3065aab5a645f606c1a9_cryptolocker.exe	28
PID 2244 wrote to memory of 2348	2244	2024-05-26_82721759c0af3065aab5a645f606c1a9_cryptolocker.exe	28
PID 2244 wrote to memory of 2348	2244	2024-05-26_82721759c0af3065aab5a645f606c1a9_cryptolocker.exe	28
PID 2244 wrote to memory of 2348	2244	2024-05-26_82721759c0af3065aab5a645f606c1a9_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-26_82721759c0af3065aab5a645f606c1a9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-26_82721759c0af3065aab5a645f606c1a9_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2244
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2348

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\hasfj.exe

Filesize
44KB

MD5
5ad1a3c693dffd8c25e79ee4ab4bfba5

SHA1
7c71e8ce4f9bb9f185c98ed6453c91cef95e7622

SHA256
deb50d4871b418ebf6c925294f66d4601a030ef2079ac52f6c4cc497faf1ebf2

SHA512
39085eb04af688663a11974ff823f060e4e5e87d84b4a67ae040044472ec70fe35528f81f756d58c3c117a2f3e9976b902cc73c4f79f265ef4f6f3c1b1b8611a

Download Submit
memory/2244-0-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/2244-1-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/2244-9-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/2244-2-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2244-13-0x0000000001EB0000-0x0000000001EBD000-memory.dmp

Filesize
52KB

Download
memory/2244-16-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/2348-17-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/2348-19-0x0000000000410000-0x0000000000416000-memory.dmp

Filesize
24KB

Download
memory/2348-26-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2348-27-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download