74c84fd48eb2753f57b18f4fe6187cc14ca22e64ce0b93e26cac6c4e8961f9be

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
06/06/2024, 20:05

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General

Target

2024-06-06_bc0e5e60a5c00404f13de8803b0afdfe_cryptolocker.exe
Size

75KB
MD5

bc0e5e60a5c00404f13de8803b0afdfe
SHA1

2b06af060b32d99d66ebf437ca4b9fde6e82a060
SHA256

74c84fd48eb2753f57b18f4fe6187cc14ca22e64ce0b93e26cac6c4e8961f9be
SHA512

b057030dd61230854a99d63e95b1cc8eefe79f7d8dfaf68322cd39eeb79888be1cb401bd2883afecfe5b9318607907cbbfadd1e6ff1a50b7a842bc4a7f121876
SSDEEP

1536:nj+4zs2cPVhlMOtEvwDpj4H8u8rZVTs9Vq:C4Q2c94OtEvwDpj4H8zV

Score

9^/10

upx

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1712-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1712-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000014e3d-11.dat	CryptoLocker_rule2
behavioral1/memory/3004-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3004-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral1/memory/1712-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3004-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3004-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 5 IoCs

resource	yara_rule
behavioral1/memory/1712-0-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/1712-15-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/files/0x000b000000014e3d-11.dat	UPX
behavioral1/memory/3004-17-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/3004-27-0x0000000000500000-0x0000000000510000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

pid	Process
3004	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1712	2024-06-06_bc0e5e60a5c00404f13de8803b0afdfe_cryptolocker.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1712-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1712-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000b000000014e3d-11.dat	upx
behavioral1/memory/3004-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/3004-27-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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 1712 wrote to memory of 3004	1712	2024-06-06_bc0e5e60a5c00404f13de8803b0afdfe_cryptolocker.exe	28
PID 1712 wrote to memory of 3004	1712	2024-06-06_bc0e5e60a5c00404f13de8803b0afdfe_cryptolocker.exe	28
PID 1712 wrote to memory of 3004	1712	2024-06-06_bc0e5e60a5c00404f13de8803b0afdfe_cryptolocker.exe	28
PID 1712 wrote to memory of 3004	1712	2024-06-06_bc0e5e60a5c00404f13de8803b0afdfe_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-06_bc0e5e60a5c00404f13de8803b0afdfe_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-06_bc0e5e60a5c00404f13de8803b0afdfe_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1712
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3004

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\misid.exe

Filesize
75KB

MD5
45a2247700efb44573e8008752baf19c

SHA1
600047775734039ba32556e435db08df779c3295

SHA256
cd176511933a9cdb1dcbe430f07f91e63dbfe5767e275948715a6ef26073a1d5

SHA512
744e44d85e4af3044d6ccec9627f69c02c1391f023360891e1097a24765d5d96b7d00f889ce6b32754ac187981702741d161543c60d44888ca3a933d6b9b83f0

Download Submit
memory/1712-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1712-1-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/1712-3-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1712-2-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/1712-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3004-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3004-19-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/3004-26-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/3004-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download