f7d7aa660f560c13cfab5373256d3faf4c9dd536e43a24df8b6329dbc41bcb1f

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
02/06/2024, 06:31

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General

Target

2024-06-02_bc2cc4224bffdced1c5953eda0337da9_cryptolocker.exe
Size

42KB
MD5

bc2cc4224bffdced1c5953eda0337da9
SHA1

6cd93093a5d0ec0a3724bb536d852c32dfa77439
SHA256

f7d7aa660f560c13cfab5373256d3faf4c9dd536e43a24df8b6329dbc41bcb1f
SHA512

eb8936c4aacd96ec8073709fd3aaab1ae53feb3717d0d56bc626fb5d3342d3b862d17d2f3836d8f75159190a7268b9e07b5e832cb60794ac4d27f13bae44b291
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6WaJIOc+UPPEkL7vF1To:YGzl5wjRQBBOsP1QMOtEvwDpjgarrkLo

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2228-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b00000001565d-11.dat	CryptoLocker_rule2
behavioral1/memory/2228-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3048-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2228-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b00000001565d-11.dat	CryptoLocker_set1
behavioral1/memory/2228-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3048-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3048	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2228	2024-06-02_bc2cc4224bffdced1c5953eda0337da9_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 2228 wrote to memory of 3048	2228	2024-06-02_bc2cc4224bffdced1c5953eda0337da9_cryptolocker.exe	28
PID 2228 wrote to memory of 3048	2228	2024-06-02_bc2cc4224bffdced1c5953eda0337da9_cryptolocker.exe	28
PID 2228 wrote to memory of 3048	2228	2024-06-02_bc2cc4224bffdced1c5953eda0337da9_cryptolocker.exe	28
PID 2228 wrote to memory of 3048	2228	2024-06-02_bc2cc4224bffdced1c5953eda0337da9_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-02_bc2cc4224bffdced1c5953eda0337da9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-02_bc2cc4224bffdced1c5953eda0337da9_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2228
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3048

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
42KB

MD5
db5574bf3b288805d452940563fbfc63

SHA1
6d84c39366680f7f08dda1766afee5fb38685ee3

SHA256
ef1fad263fa2b2beb060a0556667259436d0be3d1b81742c1a758123cce7cee3

SHA512
3dbd6f32100697f6b79a4d86bc8983f956a02346bb58a19d5752b8d0602393dcb97dc4813a42f1de17fcebe06f71d193bdbc16488a2b6061abb9eed33aa3647d

Download Submit
memory/2228-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2228-1-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2228-9-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2228-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2228-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3048-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3048-18-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/3048-25-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download