37bdc0f20c613206a88448f18139da1208a8db6d7ffd1dc46888a58b78dfb34d

Analysis

max time kernel
134s
max time network
149s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
20/02/2024, 07:23

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General

Target

2024-02-20_159af65b7cb870cfcbbd23d845672d12_cryptolocker.exe
Size

103KB
MD5

159af65b7cb870cfcbbd23d845672d12
SHA1

e82cdd372789e7aaaab0faa374779c3870680ecb
SHA256

37bdc0f20c613206a88448f18139da1208a8db6d7ffd1dc46888a58b78dfb34d
SHA512

c0b21c8a01fe09b9ae9515c86e439d480625ab5119f01e06dac085a0e2d8622a762eb3dcc92717065d0a1a7d786dbb8b2d5345f1e0c5cb59a945762676f66a9c
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNgpwqWsviPt3fQ:V6a+pOtEvwDpjtzY

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012262-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012262-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2344	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2140	2024-02-20_159af65b7cb870cfcbbd23d845672d12_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 2140 wrote to memory of 2344	2140	2024-02-20_159af65b7cb870cfcbbd23d845672d12_cryptolocker.exe	28
PID 2140 wrote to memory of 2344	2140	2024-02-20_159af65b7cb870cfcbbd23d845672d12_cryptolocker.exe	28
PID 2140 wrote to memory of 2344	2140	2024-02-20_159af65b7cb870cfcbbd23d845672d12_cryptolocker.exe	28
PID 2140 wrote to memory of 2344	2140	2024-02-20_159af65b7cb870cfcbbd23d845672d12_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-20_159af65b7cb870cfcbbd23d845672d12_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-20_159af65b7cb870cfcbbd23d845672d12_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2140
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2344

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
103KB

MD5
ace9549f842edbbe61119c720455a60c

SHA1
dcb1987a541664566c9903a04ecf156f4a0d7eac

SHA256
d788fb3ef635bffa5249210ff645599814e6c6b72ec9b06b51c377c6ebcf6e9a

SHA512
4916b60e287e911664b1b587c9c1b78bd63705a15c04864a48881cb3eaf08b83554c6e4c7051f47f9c1ff72558f34b988a0bf1b46b8f3f0234ea2161e65b3bf1

Download Submit
memory/2140-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2140-2-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2140-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2344-16-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2344-15-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download