93897e2b9f0bb90885780930151588aed0ea0771673c1155fe08f7b18ec91d63

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
24/02/2024, 11:43

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General

Target

2024-02-24_663078b4fe7e4a27ce1e73f3f0c05ddd_cryptolocker.exe
Size

48KB
MD5

663078b4fe7e4a27ce1e73f3f0c05ddd
SHA1

9e2a30447d7c6814a2fcf2292bb6855077006bce
SHA256

93897e2b9f0bb90885780930151588aed0ea0771673c1155fe08f7b18ec91d63
SHA512

a5a670141f4804f1a1a20cdf5063d1005f39fcf001e36c9eced69b27873b0beac468247b1775c12e6360efdcfd333dbe1ca132cb7887b9d5e8f36337f7cadd90
SSDEEP

768:79inqyNR/QtOOtEvwDpjBK/rJ+Nw8qnToU:79mqyNhQMOtEvwDpjBxe87U

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2244-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2992-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b00000001222a-11.dat	CryptoLocker_rule2
behavioral1/memory/2244-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2244-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2992-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b00000001222a-11.dat	CryptoLocker_set1
behavioral1/memory/2244-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2992	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2244	2024-02-24_663078b4fe7e4a27ce1e73f3f0c05ddd_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 2244 wrote to memory of 2992	2244	2024-02-24_663078b4fe7e4a27ce1e73f3f0c05ddd_cryptolocker.exe	28
PID 2244 wrote to memory of 2992	2244	2024-02-24_663078b4fe7e4a27ce1e73f3f0c05ddd_cryptolocker.exe	28
PID 2244 wrote to memory of 2992	2244	2024-02-24_663078b4fe7e4a27ce1e73f3f0c05ddd_cryptolocker.exe	28
PID 2244 wrote to memory of 2992	2244	2024-02-24_663078b4fe7e4a27ce1e73f3f0c05ddd_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-24_663078b4fe7e4a27ce1e73f3f0c05ddd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-24_663078b4fe7e4a27ce1e73f3f0c05ddd_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2244
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2992

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
48KB

MD5
4bdde7e84dbc32ca8121fe4f48f6ed23

SHA1
c0c271835ff0865ff1a8088a02494c7f4b922aba

SHA256
90979995a54d96e9a9da67ab8778281c532c153c10c5412630524267ce967fb3

SHA512
5dd0e8a376ab79e6d35e5a65f9a3346f3ca07ce2f150ee908070a8cb85ee338af414d122ab419d40d77fe3481f375a503261913921c6f540075715485a27b206

Download Submit
memory/2244-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2244-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2244-4-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2244-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2244-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2992-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2992-18-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2992-19-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download