a6d166334d1c4fea107160eece050f8ed8a9a4f4ebb93878b298978aa687ad1f

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
13/02/2024, 07:54

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General

Target

2024-02-13_7d54b917e6d112988197e1c1eb835abb_cryptolocker.exe
Size

385KB
MD5

7d54b917e6d112988197e1c1eb835abb
SHA1

4d822957f4b0742d83f1aaed4647f9b2b8c9edbf
SHA256

a6d166334d1c4fea107160eece050f8ed8a9a4f4ebb93878b298978aa687ad1f
SHA512

f63e48f69760667f35f578baca74375fe6cbcaa38a4134244a3d679b3c562fb01167a749e23c0d68d3a03e7e8bc0725bb508dfbd0c57dbe1472aeead5cecb4c1
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXJ:nnOflT/ZFIjBz3xjTxynGUOUhXJ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001220d-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2084	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1712	2024-02-13_7d54b917e6d112988197e1c1eb835abb_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 1712 wrote to memory of 2084	1712	2024-02-13_7d54b917e6d112988197e1c1eb835abb_cryptolocker.exe	28
PID 1712 wrote to memory of 2084	1712	2024-02-13_7d54b917e6d112988197e1c1eb835abb_cryptolocker.exe	28
PID 1712 wrote to memory of 2084	1712	2024-02-13_7d54b917e6d112988197e1c1eb835abb_cryptolocker.exe	28
PID 1712 wrote to memory of 2084	1712	2024-02-13_7d54b917e6d112988197e1c1eb835abb_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-13_7d54b917e6d112988197e1c1eb835abb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-13_7d54b917e6d112988197e1c1eb835abb_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1712
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2084

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
385KB

MD5
5461d122e4d65cdb34021b6e6dfd6f3a

SHA1
ed89020c9c7d2b653bda9e69cf455ee11be730c7

SHA256
0dba17ce384ed1807c5c52589db1e792af5adbe04cba5d900146188dab44cc2a

SHA512
4c14b74a488b9fcfd3c8b550ea4b32da64f1164d95d1a79569a7df64fbcee4a6473dff71e2339dc16eb9c7fc6963ecb40aca79865e7558a63e756cbb2f4770f6

Download Submit
memory/1712-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/1712-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/1712-8-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/2084-16-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2084-15-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download