a2b4e8dfda7c7398e6e682c72010f83462204f0965daad26d0b0d55df7a3988a

Analysis

max time kernel
132s
max time network
139s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06/10/2024, 04:22

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General

Target

2024-10-06_05b123b97937e6ba0fd41a950592c031_cryptolocker.exe
Size

62KB
MD5

05b123b97937e6ba0fd41a950592c031
SHA1

cf13a61b616c13f584305adcef4d15561147f7f5
SHA256

a2b4e8dfda7c7398e6e682c72010f83462204f0965daad26d0b0d55df7a3988a
SHA512

d75ddc2652bddd53f8232dd8b3cbc0bb2d350f975ee29ff0d1c686a3c8a9b5d3b3760322f52507c4eb0043699a5e2344cf1eeff56cf90002a933d69110aca2f2
SSDEEP

768:H6LsoEEeegiZPvEhHSG+gk5NQXtckstOOtEvwDpjhBaD3TUogs/VXpAP3qhW:H6QFElP6n+gou9cvMOtEvwDpjCpVXhhW

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2208	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2360	2024-10-06_05b123b97937e6ba0fd41a950592c031_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2360-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2360-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000e000000013ab3-14.dat	upx
behavioral1/memory/2208-25-0x0000000000500000-0x0000000000510000-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	asih.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-06_05b123b97937e6ba0fd41a950592c031_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2360 wrote to memory of 2208	2360	2024-10-06_05b123b97937e6ba0fd41a950592c031_cryptolocker.exe	31
PID 2360 wrote to memory of 2208	2360	2024-10-06_05b123b97937e6ba0fd41a950592c031_cryptolocker.exe	31
PID 2360 wrote to memory of 2208	2360	2024-10-06_05b123b97937e6ba0fd41a950592c031_cryptolocker.exe	31
PID 2360 wrote to memory of 2208	2360	2024-10-06_05b123b97937e6ba0fd41a950592c031_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-10-06_05b123b97937e6ba0fd41a950592c031_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-06_05b123b97937e6ba0fd41a950592c031_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2360
- 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:2208

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

Replay Monitor

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Downloads

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

Filesize
62KB

MD5
270d9d2e6ff0454010b1f10604f6c759

SHA1
124f6e079963e3ae90f222f527e4c49e32e59761

SHA256
661cd0b88133257edf90475b580f641157c5349ad9cbb264bd946828c13e21a1

SHA512
99efec2abee29a20bb211fc3380543c580c92e52fbc3f9f7840c414fa29df8c8bb7cfea82a4e4a78e7cd41d53904450a7f121755e360ba8b2269baadabb9ed78

Download Submit
memory/2208-17-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2208-24-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2208-25-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2360-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2360-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2360-2-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2360-3-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2360-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download