4dc021dd43b445bc78d67fc3a9f0210b55a43e526b67ad38dc570b82df96777f

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
27/01/2024, 15:23

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General

Target

2024-01-27_10d6880bb2ef02a7bc890c2596a347da_cryptolocker.exe
Size

38KB
MD5

10d6880bb2ef02a7bc890c2596a347da
SHA1

dbc63954095929e9ed3ab999fb91dde044bdf6c4
SHA256

4dc021dd43b445bc78d67fc3a9f0210b55a43e526b67ad38dc570b82df96777f
SHA512

e7e7ebb4982ee1cfe20ee61fc24c36b817e718d2d2a2477d29ce954a482a32881a9a08961378847709f32eb5b357800fdd687c63cdd8bb946b3d4bc61ccca547
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HKcfY:X6QFElP6n+gJQMOtEvwDpjBsYK6Y

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012267-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012267-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2108	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2512	2024-01-27_10d6880bb2ef02a7bc890c2596a347da_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 2512 wrote to memory of 2108	2512	2024-01-27_10d6880bb2ef02a7bc890c2596a347da_cryptolocker.exe	28
PID 2512 wrote to memory of 2108	2512	2024-01-27_10d6880bb2ef02a7bc890c2596a347da_cryptolocker.exe	28
PID 2512 wrote to memory of 2108	2512	2024-01-27_10d6880bb2ef02a7bc890c2596a347da_cryptolocker.exe	28
PID 2512 wrote to memory of 2108	2512	2024-01-27_10d6880bb2ef02a7bc890c2596a347da_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-27_10d6880bb2ef02a7bc890c2596a347da_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-27_10d6880bb2ef02a7bc890c2596a347da_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2512
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2108

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
38KB

MD5
bc989d1afea6321bdd5bd2eabf707d0d

SHA1
00201df64dd41fa368f3c8c87b7530913dcc0630

SHA256
898638355baed12ce840c81945cc38ffcd6407d54f19b77b30c2b70b1cf12c39

SHA512
377d8c89a68b5a3d01dbb1d995f3935ed74f2e6719f2b4c84058a7713aadca2c2a53327f6877c51209857aabdd006b20e23843853d5088e07af02bb6ef421dfa

Download Submit
memory/2108-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2108-18-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2512-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2512-1-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/2512-2-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download