4c1b59dc7f8974ca103de00bba3bd2444f51c67ede058d7094816657dec7d1d5

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23/02/2024, 15:42

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General

Target

2024-02-23_cf402c06c1ab1691304f573357d5a150_cryptolocker.exe
Size

47KB
MD5

cf402c06c1ab1691304f573357d5a150
SHA1

4d59ecfb2240298dc98d3775e9551d819e43f2c8
SHA256

4c1b59dc7f8974ca103de00bba3bd2444f51c67ede058d7094816657dec7d1d5
SHA512

04a63258ac7f6c8147766e5895ef0c7b2ac7768b22ed1678af6c3358e45539f092e31be5a0a9fa73b6dcb727ecec7fe34afc0fb842beea99e8b12f35e51beef7
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLaHaMMm2X3rtLSsYPF:V6QFElP6n+gMQMOtEvwDpjyaHaXvOsu

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000013420-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000013420-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2508	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2156	2024-02-23_cf402c06c1ab1691304f573357d5a150_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 2156 wrote to memory of 2508	2156	2024-02-23_cf402c06c1ab1691304f573357d5a150_cryptolocker.exe	28
PID 2156 wrote to memory of 2508	2156	2024-02-23_cf402c06c1ab1691304f573357d5a150_cryptolocker.exe	28
PID 2156 wrote to memory of 2508	2156	2024-02-23_cf402c06c1ab1691304f573357d5a150_cryptolocker.exe	28
PID 2156 wrote to memory of 2508	2156	2024-02-23_cf402c06c1ab1691304f573357d5a150_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-23_cf402c06c1ab1691304f573357d5a150_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_cf402c06c1ab1691304f573357d5a150_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2156
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2508

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
47KB

MD5
c0ad58fb765a00d873dd2ef167846544

SHA1
e191ed60d7afc423ce7c59a73ab85fc0173be703

SHA256
c6ad9af8f1438ece16c55ba1fed14f7ca554c39dd9f90e80e1bc080500f3ba65

SHA512
f1bd87a88ac90396bbc2db3eff06f5e202962ab2bf85d4dff191352b773603a27ad58bc85cbc9e5c21044d130ca5b843b27c32249bb6e6a65270e96d2eb5d4ba

Download Submit
memory/2156-0-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2156-1-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2156-3-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2508-15-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2508-17-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download