11ea0a5ac7ba3589aab23724b682c3312d1c469e0763ef04c851ea620900af4a

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18/02/2024, 06:29

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General

Target

2024-02-18_345b5819b1f8885a96bab5c354714f21_cryptolocker.exe
Size

61KB
MD5

345b5819b1f8885a96bab5c354714f21
SHA1

01ec7e8318936709338becb7d0bd44470c444a9a
SHA256

11ea0a5ac7ba3589aab23724b682c3312d1c469e0763ef04c851ea620900af4a
SHA512

a245fe00bafdebb6dc68150452c62eb12cf5a7e21436c1b8f16bde166b0a4209cb1fa401ade343e7a71f74b5f0781c75ef3e3cf44987e8aba4c9ad566767b5a4
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBccD2RuoNmuBLZ/x0:X6a+SOtEvwDpjBrOG

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012222-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012222-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2672	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1980	2024-02-18_345b5819b1f8885a96bab5c354714f21_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 1980 wrote to memory of 2672	1980	2024-02-18_345b5819b1f8885a96bab5c354714f21_cryptolocker.exe	28
PID 1980 wrote to memory of 2672	1980	2024-02-18_345b5819b1f8885a96bab5c354714f21_cryptolocker.exe	28
PID 1980 wrote to memory of 2672	1980	2024-02-18_345b5819b1f8885a96bab5c354714f21_cryptolocker.exe	28
PID 1980 wrote to memory of 2672	1980	2024-02-18_345b5819b1f8885a96bab5c354714f21_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-18_345b5819b1f8885a96bab5c354714f21_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_345b5819b1f8885a96bab5c354714f21_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1980
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2672

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
61KB

MD5
2095db62cebe263e36fac235a84eeb54

SHA1
781f11dfec84d1b2109079f6eca32189724fccf1

SHA256
826ff130d277cb63882c838cfdc3bc53ca58b0f6ef8a0ab39c3eeb701215142a

SHA512
a9afd0813239bf19dc0498d389199b531235dba97aa56eaf3fa6caa81be39bb9af392c3a5d21009ea60e8dfe61991ece52a5a21aeabfd296cf8a9c72675affef

Download Submit
memory/1980-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1980-2-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1980-1-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/2672-15-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2672-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download