5c013ac44565b713485a461badb438d97c68f0de28d71ac42e7ee97ed107321e

General

Target

2024-05-23_68ebedddd883437db1372b478bd1b028_cryptolocker.exe
Size

81KB
MD5

68ebedddd883437db1372b478bd1b028
SHA1

a20967c6a884150b63de4e8f8d14e6adac8f335f
SHA256

5c013ac44565b713485a461badb438d97c68f0de28d71ac42e7ee97ed107321e
SHA512

58bcb7419c042b98bfac8cc34b0d6ded09c6b63b4545b884eb44685cd113c9fadcf2bf0b1e2c822551a861fdaaf3877296dae22cdbe7c27887dbc0ac72e8ac37
SSDEEP

1536:zj+soPSMOtEvwDpj4ktBl01hJ0tq1ky7Qsd:zCsanOtEvwDpjW

Score

9^/10

upx

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1368-1-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_rule2
behavioral1/memory/1368-14-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1872-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1872-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1368-1-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_set1
behavioral1/memory/1368-14-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1872-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1872-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1368-1-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
\Users\Admin\AppData\Local\Temp\misid.exe	UPX
behavioral1/memory/1368-14-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/1872-16-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/1872-26-0x0000000000500000-0x0000000000510000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

Processes:

misid.exe

pid process

1872 misid.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-23_68ebedddd883437db1372b478bd1b028_cryptolocker.exe

pid process

1368 2024-05-23_68ebedddd883437db1372b478bd1b028_cryptolocker.exe

pid	process
1872	misid.exe

pid	process
1368	2024-05-23_68ebedddd883437db1372b478bd1b028_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1368-1-0x0000000000500000-0x0000000000510000-memory.dmp	upx
\Users\Admin\AppData\Local\Temp\misid.exe	upx
behavioral1/memory/1368-14-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1872-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1872-26-0x0000000000500000-0x0000000000510000-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

Processes:

2024-05-23_68ebedddd883437db1372b478bd1b028_cryptolocker.exe

description	pid	process	target process
PID 1368 wrote to memory of 1872	1368	2024-05-23_68ebedddd883437db1372b478bd1b028_cryptolocker.exe	misid.exe
PID 1368 wrote to memory of 1872	1368	2024-05-23_68ebedddd883437db1372b478bd1b028_cryptolocker.exe	misid.exe
PID 1368 wrote to memory of 1872	1368	2024-05-23_68ebedddd883437db1372b478bd1b028_cryptolocker.exe	misid.exe
PID 1368 wrote to memory of 1872	1368	2024-05-23_68ebedddd883437db1372b478bd1b028_cryptolocker.exe	misid.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-23_68ebedddd883437db1372b478bd1b028_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_68ebedddd883437db1372b478bd1b028_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1368

C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
2⤵
- Executes dropped EXE
PID:1872

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

\Users\Admin\AppData\Local\Temp\misid.exe
Filesize
81KB

MD5
e3d97f31b622954c036829b9b3620357

SHA1
9ffe70b83e9bb3400fe149d844a4bf031f48696c

SHA256
bf6b096aa06a77c47d5d19353fd5f7e1ca672110e030784719b861ea56d236cf

SHA512
3167721d3ef0afd38f58556113971c759455f6d3f1c9405f8f464d19dbbf11a615240dae4051f68e6aea5b7c6bd6f7923a181938b0d4a1e6c976887752192d00

Download Submit
memory/1368-0-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/1368-1-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1368-2-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/1368-9-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/1368-14-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1872-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1872-18-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/1872-25-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1872-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads