c0cfbde2b8009d74b27c0d937c7f7223de580a0fb0efb48f85236520acdc0c9a

General

Target

2024-05-23_645ac27edabe53087eb34f44589c707a_cryptolocker.exe
Size

97KB
MD5

645ac27edabe53087eb34f44589c707a
SHA1

c5dde2273a1393846d577b2ef5bd3f7e0d074ceb
SHA256

c0cfbde2b8009d74b27c0d937c7f7223de580a0fb0efb48f85236520acdc0c9a
SHA512

d5e97b1b77e95f59889b185cc54537777432574c45349fc8588b8e286ddb71e22912c892781cad34459b93c87582f8d1de1107b8cafe0d84c5d5f749b854caba
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mktJYy:xj+VGMOtEvwDpjubwQEIiVmksy

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2856-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_rule2
behavioral1/memory/2856-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1744-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2856-13-0x0000000001DF0000-0x0000000001E00000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1744-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2856-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_set1
behavioral1/memory/2856-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1744-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2856-13-0x0000000001DF0000-0x0000000001E00000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1744-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2856-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
\Users\Admin\AppData\Local\Temp\misid.exe	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2856-16-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1744-17-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2856-13-0x0000000001DF0000-0x0000000001E00000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1744-27-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

Processes:

misid.exe

pid process

1744 misid.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-23_645ac27edabe53087eb34f44589c707a_cryptolocker.exe

pid process

2856 2024-05-23_645ac27edabe53087eb34f44589c707a_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1744	misid.exe

pid	process
2856	2024-05-23_645ac27edabe53087eb34f44589c707a_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-23_645ac27edabe53087eb34f44589c707a_cryptolocker.exe

description	pid	process	target process
PID 2856 wrote to memory of 1744	2856	2024-05-23_645ac27edabe53087eb34f44589c707a_cryptolocker.exe	misid.exe
PID 2856 wrote to memory of 1744	2856	2024-05-23_645ac27edabe53087eb34f44589c707a_cryptolocker.exe	misid.exe
PID 2856 wrote to memory of 1744	2856	2024-05-23_645ac27edabe53087eb34f44589c707a_cryptolocker.exe	misid.exe
PID 2856 wrote to memory of 1744	2856	2024-05-23_645ac27edabe53087eb34f44589c707a_cryptolocker.exe	misid.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-23_645ac27edabe53087eb34f44589c707a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_645ac27edabe53087eb34f44589c707a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2856

C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
2⤵
- Executes dropped EXE
PID:1744

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
97KB

MD5
08345662f225bf55efc3e209b8ce639b

SHA1
d870074955640bdcfd2e09fcf23a44398605a0eb

SHA256
a043aa38fd93a720f02e801549973b867e1d3c90cf18222d37d1ed1d29980855

SHA512
437607e183a0005be36bb0d418265771964902fcd759df23316aacce5fea70c36f9be328b5bdcf2e48b2f83f3899ede3d7303b2d832ed73a5a187b924efe723a

Download Submit
memory/1744-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1744-19-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/1744-26-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/1744-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2856-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2856-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2856-2-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/2856-9-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2856-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2856-13-0x0000000001DF0000-0x0000000001E00000-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