91543d070d4374519112758246bae5b4bc544c61fe37553bacd2734177b61672

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
28/02/2024, 04:48

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General

Target

2024-02-28_48b9d38fa13b61fa69a684807f2aadf8_cryptolocker.exe
Size

29KB
MD5

48b9d38fa13b61fa69a684807f2aadf8
SHA1

f025c60c1ed5ee07681663c52ef710b8ae1786c4
SHA256

91543d070d4374519112758246bae5b4bc544c61fe37553bacd2734177b61672
SHA512

d8b9e1135328482e87e1b5006d05d8b5416ab1625445a64b4f5ea8a23a67168715b42f4f8ecbc2c926af169a1eb2c1d875c5d7bf07948b994ce7c1940095b23a
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUr766SJN:bA74zYcgT/Ekd0ryfjQRSj

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00090000000122be-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2884	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1656	2024-02-28_48b9d38fa13b61fa69a684807f2aadf8_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 1656 wrote to memory of 2884	1656	2024-02-28_48b9d38fa13b61fa69a684807f2aadf8_cryptolocker.exe	28
PID 1656 wrote to memory of 2884	1656	2024-02-28_48b9d38fa13b61fa69a684807f2aadf8_cryptolocker.exe	28
PID 1656 wrote to memory of 2884	1656	2024-02-28_48b9d38fa13b61fa69a684807f2aadf8_cryptolocker.exe	28
PID 1656 wrote to memory of 2884	1656	2024-02-28_48b9d38fa13b61fa69a684807f2aadf8_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-28_48b9d38fa13b61fa69a684807f2aadf8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-28_48b9d38fa13b61fa69a684807f2aadf8_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1656
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2884

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
29KB

MD5
aa63919613faf3e37d952b2037c73478

SHA1
515c3fc532730ef0aaaeddec4c5f8cc31c2d5af3

SHA256
f8ceb6f5a85892e3d17e640b9c72032e7dbcae77fb6c531907e2223a66bcaa3a

SHA512
a24f6c17c2cb90bd4e07a976aabadad90186ac7397353380a29514fa1c0db6fca4212a58ebe0cfb1fc219d38e2468b22b4a16f1e107c89ddccfe6414de7c5ce7

Download Submit
memory/1656-0-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/1656-5-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/1656-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2884-22-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/2884-15-0x0000000002D00000-0x0000000002D06000-memory.dmp

Filesize
24KB

Download