000c6ce0c22aa071a5915c8593174a684ac44f198f6d833a4efe0f29d39bbd95

General

Target

2024-04-03_56976a0761450b3eb2aac30a6360d0ab_cryptolocker.exe
Size

92KB
MD5

56976a0761450b3eb2aac30a6360d0ab
SHA1

6b209adb5446810007034bd243a4826cba5fd312
SHA256

000c6ce0c22aa071a5915c8593174a684ac44f198f6d833a4efe0f29d39bbd95
SHA512

cb64d14fa3fa40a4d40bc386f50b6cfb6dda896c0a92ee2c479c64b6d64b5b87ddf3599af532aa3e17b4c01d00a99ba5cb31d98a3287f17efebfd0bc2d01367a
SSDEEP

1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRDjgx/b:zCsanOtEvwDpjBb

Score

9^/10

upx

Malware Config

Signatures

Detection of CryptoLocker Variants 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2696-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_rule2
behavioral1/memory/2696-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2828-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2696-13-0x00000000022B0000-0x00000000022C0000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2828-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2696-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_set1
behavioral1/memory/2696-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2828-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2696-13-0x00000000022B0000-0x00000000022C0000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2828-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2696-0-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
\Users\Admin\AppData\Local\Temp\misid.exe	UPX
behavioral1/memory/2696-15-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/2828-17-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/2696-13-0x00000000022B0000-0x00000000022C0000-memory.dmp	UPX
behavioral1/memory/2828-27-0x0000000000500000-0x0000000000510000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

Processes:

misid.exe

pid process

2828 misid.exe
Loads dropped DLL 1 IoCs

Processes:

2024-04-03_56976a0761450b3eb2aac30a6360d0ab_cryptolocker.exe

pid process

2696 2024-04-03_56976a0761450b3eb2aac30a6360d0ab_cryptolocker.exe

pid	process
2828	misid.exe

pid	process
2696	2024-04-03_56976a0761450b3eb2aac30a6360d0ab_cryptolocker.exe

UPX packed file 6 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2696-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
\Users\Admin\AppData\Local\Temp\misid.exe	upx
behavioral1/memory/2696-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2828-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2696-13-0x00000000022B0000-0x00000000022C0000-memory.dmp	upx
behavioral1/memory/2828-27-0x0000000000500000-0x0000000000510000-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

Processes:

2024-04-03_56976a0761450b3eb2aac30a6360d0ab_cryptolocker.exe

description	pid	process	target process
PID 2696 wrote to memory of 2828	2696	2024-04-03_56976a0761450b3eb2aac30a6360d0ab_cryptolocker.exe	misid.exe
PID 2696 wrote to memory of 2828	2696	2024-04-03_56976a0761450b3eb2aac30a6360d0ab_cryptolocker.exe	misid.exe
PID 2696 wrote to memory of 2828	2696	2024-04-03_56976a0761450b3eb2aac30a6360d0ab_cryptolocker.exe	misid.exe
PID 2696 wrote to memory of 2828	2696	2024-04-03_56976a0761450b3eb2aac30a6360d0ab_cryptolocker.exe	misid.exe

C:\Users\Admin\AppData\Local\Temp\2024-04-03_56976a0761450b3eb2aac30a6360d0ab_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-03_56976a0761450b3eb2aac30a6360d0ab_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2696

C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
2⤵
- Executes dropped EXE
PID:2828

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
92KB

MD5
0c9bfeafc4a4458a02f781e38a810624

SHA1
8fbcae309dfccb9c6a6f4a0e7c748628c9598aef

SHA256
143b8de2ab75fd258a5ef081958ccf217c3c2861e255f4ce21a466516b4ae9ec

SHA512
dc73f5503dfdf4d6d9e8b0098ed8c1215e9ae0725157e7d9150b5970e1f3b4353c800aed660118d55cee3e271f02de28401401b73e557a1a353b7c6f801ede61

Download Submit
memory/2696-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2696-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2696-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2696-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2696-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2696-13-0x00000000022B0000-0x00000000022C0000-memory.dmp

Filesize
64KB

Download
memory/2828-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2828-19-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2828-26-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2828-27-0x0000000000500000-0x0000000000510000-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