5c54535c1b565ce35d972ea568972002852ab21c09f0f2655568f4c6df8a2296

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
06/11/2023, 19:58

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General

Target

NEAS.2023-09-28_10374f03c2f5e8a09ece69203adc0117_cryptolocker.exe
Size

67KB
MD5

10374f03c2f5e8a09ece69203adc0117
SHA1

42b3f363ddf02134ae5e5eab57565752f66d1c57
SHA256

5c54535c1b565ce35d972ea568972002852ab21c09f0f2655568f4c6df8a2296
SHA512

f733dbfdda3570613251361b49a8d092eea4ecf2b530d4bfe72704d8aa3f797d8212f4d999b1754e81147a2f7b764b56191f039de57c30e7ce2db13c6d7db615
SSDEEP

1536:z6QFElP6n+gKmddpMOtEvwDpj9aYaFAeB2:z6a+CdOOtEvwDpjQ4

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2728	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2000	NEAS.2023-09-28_10374f03c2f5e8a09ece69203adc0117_cryptolocker.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2000-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x00070000000120bd-11.dat	upx
behavioral1/memory/2000-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2728-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x00070000000120bd-15.dat	upx
behavioral1/files/0x00070000000120bd-25.dat	upx
behavioral1/memory/2728-26-0x0000000000500000-0x0000000000510000-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 2000 wrote to memory of 2728	2000	NEAS.2023-09-28_10374f03c2f5e8a09ece69203adc0117_cryptolocker.exe	28
PID 2000 wrote to memory of 2728	2000	NEAS.2023-09-28_10374f03c2f5e8a09ece69203adc0117_cryptolocker.exe	28
PID 2000 wrote to memory of 2728	2000	NEAS.2023-09-28_10374f03c2f5e8a09ece69203adc0117_cryptolocker.exe	28
PID 2000 wrote to memory of 2728	2000	NEAS.2023-09-28_10374f03c2f5e8a09ece69203adc0117_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\NEAS.2023-09-28_10374f03c2f5e8a09ece69203adc0117_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.2023-09-28_10374f03c2f5e8a09ece69203adc0117_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2000
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2728

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

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

Filesize
67KB

MD5
fd8c4e6781a320d3687877ad08de0d18

SHA1
a9d72d6bc24b3b00588c48bd6d548efdc9b82046

SHA256
5538aed3d19ebb0c9672ea37b6d84ea008fc3eee3f15fa176a9c3b14e9b3c33f

SHA512
d8965d4aa9f2f289dd2c5f170d3a5b25545e190392e86ef656d8fa7a6284400b16534f9f70fa8f92070a9cc1cb76c80230c6a12716769cdc001f810f2f4ea205

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

Filesize
67KB

MD5
fd8c4e6781a320d3687877ad08de0d18

SHA1
a9d72d6bc24b3b00588c48bd6d548efdc9b82046

SHA256
5538aed3d19ebb0c9672ea37b6d84ea008fc3eee3f15fa176a9c3b14e9b3c33f

SHA512
d8965d4aa9f2f289dd2c5f170d3a5b25545e190392e86ef656d8fa7a6284400b16534f9f70fa8f92070a9cc1cb76c80230c6a12716769cdc001f810f2f4ea205

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

Filesize
67KB

MD5
fd8c4e6781a320d3687877ad08de0d18

SHA1
a9d72d6bc24b3b00588c48bd6d548efdc9b82046

SHA256
5538aed3d19ebb0c9672ea37b6d84ea008fc3eee3f15fa176a9c3b14e9b3c33f

SHA512
d8965d4aa9f2f289dd2c5f170d3a5b25545e190392e86ef656d8fa7a6284400b16534f9f70fa8f92070a9cc1cb76c80230c6a12716769cdc001f810f2f4ea205

Download Submit
memory/2000-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2000-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2000-3-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2000-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2000-13-0x0000000001EB0000-0x0000000001EC0000-memory.dmp

Filesize
64KB

Download
memory/2000-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2728-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2728-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download