fb5e10b191033b65c2e7dd34d99f90a15a514b5a5dd13030a75dd06bdd85f73d

Analysis

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

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
20/02/2024, 01:56

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General

Target

2024-02-20_ddb7e71ba3266c630c84508b4d0ae105_cryptolocker.exe
Size

70KB
MD5

ddb7e71ba3266c630c84508b4d0ae105
SHA1

3f2c5f3caf7e675c00c245401a8c8b02e1b8d787
SHA256

fb5e10b191033b65c2e7dd34d99f90a15a514b5a5dd13030a75dd06bdd85f73d
SHA512

0b76e5f551b923abe308e37466274eb5c5e2af6c754da3f66fa6868e6b45751940e05459b411d038bae9cbf13f5e2ab5d66cbfad1e17d5bd9e46ca4457af6a63
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUL:DW60sllyWOtEvwDpjwF85V

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2924-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000013ab9-11.dat	CryptoLocker_rule2
behavioral1/memory/1032-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2924-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2924-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000013ab9-11.dat	CryptoLocker_set1
behavioral1/memory/1032-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2924-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1032	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2924	2024-02-20_ddb7e71ba3266c630c84508b4d0ae105_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 2924 wrote to memory of 1032	2924	2024-02-20_ddb7e71ba3266c630c84508b4d0ae105_cryptolocker.exe	28
PID 2924 wrote to memory of 1032	2924	2024-02-20_ddb7e71ba3266c630c84508b4d0ae105_cryptolocker.exe	28
PID 2924 wrote to memory of 1032	2924	2024-02-20_ddb7e71ba3266c630c84508b4d0ae105_cryptolocker.exe	28
PID 2924 wrote to memory of 1032	2924	2024-02-20_ddb7e71ba3266c630c84508b4d0ae105_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-20_ddb7e71ba3266c630c84508b4d0ae105_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-20_ddb7e71ba3266c630c84508b4d0ae105_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2924
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1032

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
70KB

MD5
28e54ff7281aaf908dc1ee3456a09ea8

SHA1
50869c2b5685c406591307a033bce876cc91c87e

SHA256
f28d2597b6303116c08b96f5422e26d8cad03c92448de3d3db97b4a5ec2347ae

SHA512
852c46ff729d7ee869a52437945441e77ae970fc5d41c5077ca5a1ff065af7afdb5bb15c926a871bbe1c186a279305b525136a2548e8fe0acdb8ce381811bbc3

Download Submit
memory/1032-19-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/1032-20-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1032-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2924-1-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2924-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2924-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2924-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2924-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2924-14-0x00000000004D0000-0x00000000004DB000-memory.dmp

Filesize
44KB

Download