c759cb726377fdd9106d34d499c1d0226c92a27cd5cd3cb4d8d4c78c695c5c1b

Analysis

max time kernel
140s
max time network
138s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06/10/2024, 02:42

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General

Target

2024-10-06_7dba87dc03b2cf70f60adadf301abda2_cryptolocker.exe
Size

91KB
MD5

7dba87dc03b2cf70f60adadf301abda2
SHA1

b52314c110f3fef4dc40232bb72665d23d338f7f
SHA256

c759cb726377fdd9106d34d499c1d0226c92a27cd5cd3cb4d8d4c78c695c5c1b
SHA512

3c4dcc99cac78a7ba883230934f17fd7ddab19a0e8c69bb9aefb306f8658d88ce4ec1d0f1faf2ed068e97f38a7f9fa2f86b9bf0f420c6a988bfbc1d60a9961a1
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp01n:AnBdOOtEvwDpj6zl

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2580	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2136	2024-10-06_7dba87dc03b2cf70f60adadf301abda2_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2136-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x0008000000012102-11.dat	upx
behavioral1/memory/2136-15-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/2580-17-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/2580-27-0x0000000000500000-0x000000000050F000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-06_7dba87dc03b2cf70f60adadf301abda2_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2136 wrote to memory of 2580	2136	2024-10-06_7dba87dc03b2cf70f60adadf301abda2_cryptolocker.exe	30
PID 2136 wrote to memory of 2580	2136	2024-10-06_7dba87dc03b2cf70f60adadf301abda2_cryptolocker.exe	30
PID 2136 wrote to memory of 2580	2136	2024-10-06_7dba87dc03b2cf70f60adadf301abda2_cryptolocker.exe	30
PID 2136 wrote to memory of 2580	2136	2024-10-06_7dba87dc03b2cf70f60adadf301abda2_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-06_7dba87dc03b2cf70f60adadf301abda2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-06_7dba87dc03b2cf70f60adadf301abda2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2136
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2580

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
91KB

MD5
97b9b64c7852806d1fc79f76b159235a

SHA1
fe8f538178f724b95fce63729d46bc151963a792

SHA256
32f176a536e97cf637655509bdf58f2c62105ad9decb818d0634ae27393b8ed3

SHA512
cfb750c74a805434cd8929e4b247cb8619a046310833ccffed581495f0fb469ad54794a2b5ad087c7d6ba49342441df9a28fe0288f9eb761ef1bf17a98ae9006

Download Submit
memory/2136-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2136-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2136-10-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2136-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2136-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2580-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2580-19-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2580-26-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2580-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download