9f77fda995e6ca13def67c74ff932a549590fe9ea2d7424353fc687b071dd672

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09/03/2024, 03:25

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General

Target

2024-03-09_2abf457fc624dd3567507ba72039124b_cryptolocker.exe
Size

82KB
MD5

2abf457fc624dd3567507ba72039124b
SHA1

dc8d7dfff0deb981ef7d529fdae976c2e646d157
SHA256

9f77fda995e6ca13def67c74ff932a549590fe9ea2d7424353fc687b071dd672
SHA512

0f2e1491812c585e5bc5b52fa2b2af12b4d0258132b9826bd6b6c85eee4a5a4e0b30b0924792e655500a96bc8a88d0ba269a4a57ce960a80dc7590dec57ecf30
SSDEEP

1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOT7vS:T6a+rdOOtEvwDpjNe

Score

9^/10

upx

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2016-1-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0008000000012272-11.dat	CryptoLocker_rule2
behavioral1/memory/2632-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2016-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2632-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2016-1-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0008000000012272-11.dat	CryptoLocker_set1
behavioral1/memory/2632-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2016-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2632-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 5 IoCs

resource	yara_rule
behavioral1/memory/2016-1-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/files/0x0008000000012272-11.dat	UPX
behavioral1/memory/2632-17-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/2016-15-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/2632-26-0x0000000000500000-0x0000000000510000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

pid	Process
2632	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2016	2024-03-09_2abf457fc624dd3567507ba72039124b_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2016-1-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0008000000012272-11.dat	upx
behavioral1/memory/2632-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2016-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2632-26-0x0000000000500000-0x0000000000510000-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 2016 wrote to memory of 2632	2016	2024-03-09_2abf457fc624dd3567507ba72039124b_cryptolocker.exe	28
PID 2016 wrote to memory of 2632	2016	2024-03-09_2abf457fc624dd3567507ba72039124b_cryptolocker.exe	28
PID 2016 wrote to memory of 2632	2016	2024-03-09_2abf457fc624dd3567507ba72039124b_cryptolocker.exe	28
PID 2016 wrote to memory of 2632	2016	2024-03-09_2abf457fc624dd3567507ba72039124b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-09_2abf457fc624dd3567507ba72039124b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-09_2abf457fc624dd3567507ba72039124b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2016
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2632

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
82KB

MD5
5859cd53bf48fbf713b11b8c52fdea3b

SHA1
54292fd589c272fd91d6853c8a8c8ba182d05298

SHA256
02fe446837bace3dba24b71f41612f2677ce9e74886ca2ef6571fb551f204afc

SHA512
40b79ae39dc856d1093217581f1c86e6153b38a2bcd7ca742dd57dd3ff49be4cae3a4ee56a7bd7e95d62a8849768ec8e22d35f78d04f9bac7ee4b0ddffdac1e3

Download Submit
memory/2016-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2016-1-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2016-2-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/2016-3-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2016-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2632-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2632-19-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2632-18-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2632-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download