5e6aea223c6741a86a42dd3126bf133a79afb33701790559afa0283c47375759

Analysis

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

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
08/03/2024, 06:19

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General

Target

2024-03-08_d67ebbdc6bc495aad3f24e28178db240_cryptolocker.exe
Size

68KB
MD5

d67ebbdc6bc495aad3f24e28178db240
SHA1

a43a9cbaf41a306846a8126d31957eb50631503b
SHA256

5e6aea223c6741a86a42dd3126bf133a79afb33701790559afa0283c47375759
SHA512

656b377f25c25334283e157ec4d9c2ef370a77bacad5ce15865266aeb82aba6ce1506e5702005f8225f0b327916b4cd0828d8c678bf9ea9f05be7df21be490d6
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUri:DW60sllyWOtEvwDpjwF85k

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/912-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000012248-11.dat	CryptoLocker_rule2
behavioral1/memory/912-13-0x00000000005F0000-0x00000000005FB000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3040-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/912-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/912-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000012248-11.dat	CryptoLocker_set1
behavioral1/memory/912-13-0x00000000005F0000-0x00000000005FB000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3040-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/912-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3040	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
912	2024-03-08_d67ebbdc6bc495aad3f24e28178db240_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 912 wrote to memory of 3040	912	2024-03-08_d67ebbdc6bc495aad3f24e28178db240_cryptolocker.exe	28
PID 912 wrote to memory of 3040	912	2024-03-08_d67ebbdc6bc495aad3f24e28178db240_cryptolocker.exe	28
PID 912 wrote to memory of 3040	912	2024-03-08_d67ebbdc6bc495aad3f24e28178db240_cryptolocker.exe	28
PID 912 wrote to memory of 3040	912	2024-03-08_d67ebbdc6bc495aad3f24e28178db240_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-08_d67ebbdc6bc495aad3f24e28178db240_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_d67ebbdc6bc495aad3f24e28178db240_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:912
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3040

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
68KB

MD5
33c5857ea62f7bc8a619bd9e28248f7a

SHA1
3f112c7c94bd65a3328b1da3feda514c4e699b76

SHA256
f0249253c205641b2dac39239c6a307530ef8e3b692549e64fe0e9ad7af295a3

SHA512
57bb4d24c304897f138859d77ff81384dbe22bbc483b44d0e28d54bff308608b72f98299582ab9628130b7913b3aac9c9712dcd2c0eea105396d8de5ee409fb8

Download Submit
memory/912-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/912-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/912-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/912-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/912-13-0x00000000005F0000-0x00000000005FB000-memory.dmp

Filesize
44KB

Download
memory/912-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3040-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3040-19-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download