6ee60438c45eb04575d2973bb4c84d5db0fd6247e1a89aa4b01c3dfe6bab54b6

Analysis

max time kernel
223s
max time network
310s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
23-11-2022 18:39

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General

Target

2022-11-23_e5e0e65669da3a7fcd9f9080f5772d84_cryptolocker.exe
Size

117KB
MD5

e5e0e65669da3a7fcd9f9080f5772d84
SHA1

c40f4071eb36b6f3c07baf7b6906ca55c15db7df
SHA256

6ee60438c45eb04575d2973bb4c84d5db0fd6247e1a89aa4b01c3dfe6bab54b6
SHA512

cdf6fea66903f7aae1b516f093cbe3ab8b526f0af242396e97abd4d4a36bc9c89872abcc98f5d0df34901a1e3d1eae8ff08823164ea8a1d6b157ff9e344393c6
SSDEEP

1536:z6QFElP6n+gKmddpMOtEvwDpj3GYQbN/PKwNgp69u:z6a+CdOOtEvwDpjcz0

Score

8^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

1500 asih.exe

pid	process
1500	asih.exe

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1976-62-0x0000000000500000-0x0000000000510000-memory.dmp	upx
\Users\Admin\AppData\Local\Temp\asih.exe	upx
C:\Users\Admin\AppData\Local\Temp\asih.exe	upx
C:\Users\Admin\AppData\Local\Temp\asih.exe	upx
behavioral1/memory/1500-76-0x0000000000500000-0x0000000000510000-memory.dmp	upx

Loads dropped DLL 1 IoCs

Processes:

2022-11-23_e5e0e65669da3a7fcd9f9080f5772d84_cryptolocker.exe

pid process

1976 2022-11-23_e5e0e65669da3a7fcd9f9080f5772d84_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

pid	process
1976	2022-11-23_e5e0e65669da3a7fcd9f9080f5772d84_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2022-11-23_e5e0e65669da3a7fcd9f9080f5772d84_cryptolocker.exe

description	pid	process	target process
PID 1976 wrote to memory of 1500	1976	2022-11-23_e5e0e65669da3a7fcd9f9080f5772d84_cryptolocker.exe	asih.exe
PID 1976 wrote to memory of 1500	1976	2022-11-23_e5e0e65669da3a7fcd9f9080f5772d84_cryptolocker.exe	asih.exe
PID 1976 wrote to memory of 1500	1976	2022-11-23_e5e0e65669da3a7fcd9f9080f5772d84_cryptolocker.exe	asih.exe
PID 1976 wrote to memory of 1500	1976	2022-11-23_e5e0e65669da3a7fcd9f9080f5772d84_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2022-11-23_e5e0e65669da3a7fcd9f9080f5772d84_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2022-11-23_e5e0e65669da3a7fcd9f9080f5772d84_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1976

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:1500

Network

MITRE ATT&CK Enterprise v6

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

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
117KB

MD5
a8138578ae5d3a93643c646a23bfacfe

SHA1
eecb78493b27c497691d2e11803e1fa4cafeb838

SHA256
f1588034410a38f771b00784f74e0d6703aad5f619f6e49d7b2189544e652db5

SHA512
015cffb6ceac634c2b7c06b1d686f4044ef7381eb692b402c061669dc5383b59298b2b599aa3f298b853cca1b911cba68f595d8f4b1ef642b6fc120665a83f32

Download Submit
C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
117KB

MD5
a8138578ae5d3a93643c646a23bfacfe

SHA1
eecb78493b27c497691d2e11803e1fa4cafeb838

SHA256
f1588034410a38f771b00784f74e0d6703aad5f619f6e49d7b2189544e652db5

SHA512
015cffb6ceac634c2b7c06b1d686f4044ef7381eb692b402c061669dc5383b59298b2b599aa3f298b853cca1b911cba68f595d8f4b1ef642b6fc120665a83f32

Download Submit
\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
117KB

MD5
a8138578ae5d3a93643c646a23bfacfe

SHA1
eecb78493b27c497691d2e11803e1fa4cafeb838

SHA256
f1588034410a38f771b00784f74e0d6703aad5f619f6e49d7b2189544e652db5

SHA512
015cffb6ceac634c2b7c06b1d686f4044ef7381eb692b402c061669dc5383b59298b2b599aa3f298b853cca1b911cba68f595d8f4b1ef642b6fc120665a83f32

Download Submit
memory/1500-65-0x0000000000000000-mapping.dmp

Download
memory/1500-69-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1500-76-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1500-77-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/1976-54-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1976-55-0x00000000767C1000-0x00000000767C3000-memory.dmp

Filesize
8KB

Download
memory/1976-56-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/1976-62-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1976-63-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download