49ffcb061b3e463e11581696a81caa192263827598373ae51dbdf82e2a060900

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
12/03/2024, 07:28

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General

Target

2024-03-12_8d4267a88372ef033225b2d63d6e7def_cryptolocker.exe
Size

49KB
MD5

8d4267a88372ef033225b2d63d6e7def
SHA1

96a0a26a784c3b45710cc1e10b4249dcd72bfbda
SHA256

49ffcb061b3e463e11581696a81caa192263827598373ae51dbdf82e2a060900
SHA512

590a21930b984cbeb5798462a6c41e971fcd7b2920dbb3cdcedd7d0f0f15018d84ba18bdc986c276fbfc4a4970434ec40c88ebff727bd17b105f82a3affaaac6
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu55id3AMWZd:X6QFElP6n+gJQMOtEvwDpjB0GIWiWLT

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012236-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012236-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3012	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1624	2024-03-12_8d4267a88372ef033225b2d63d6e7def_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 1624 wrote to memory of 3012	1624	2024-03-12_8d4267a88372ef033225b2d63d6e7def_cryptolocker.exe	28
PID 1624 wrote to memory of 3012	1624	2024-03-12_8d4267a88372ef033225b2d63d6e7def_cryptolocker.exe	28
PID 1624 wrote to memory of 3012	1624	2024-03-12_8d4267a88372ef033225b2d63d6e7def_cryptolocker.exe	28
PID 1624 wrote to memory of 3012	1624	2024-03-12_8d4267a88372ef033225b2d63d6e7def_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-12_8d4267a88372ef033225b2d63d6e7def_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-12_8d4267a88372ef033225b2d63d6e7def_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1624
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3012

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
49KB

MD5
ad12774014e0f23c8731ea7114f3439c

SHA1
cbb3012942fbc878a538f32a28bcedf578a1051a

SHA256
c8ac3cc698b546982325f78d99bc40202c3f83628bbf764b45eeb0b432088d58

SHA512
3a9e4e9bf6c0b6f6ac836e6657c88f66a64203c16aff1c009ff99e5e3568dc9daef45e0fa439dbcb1fc04246d0986601e0331720e90a512146f11614d8450afe

Download Submit
memory/1624-0-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/1624-1-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/1624-8-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/3012-15-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/3012-22-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download