1eff0d0c8979736519bed2819a504f1ba3213c1d1b47fdd8a2f4325a057c819b

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05-10-2024 20:11

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General

Target

2024-10-05_c9e5890ba2d2d5d08a2269c8b9fc51e0_cryptolocker.exe
Size

39KB
MD5

c9e5890ba2d2d5d08a2269c8b9fc51e0
SHA1

a170f33d54469e49a3597e3fd9987adb9958aeb0
SHA256

1eff0d0c8979736519bed2819a504f1ba3213c1d1b47fdd8a2f4325a057c819b
SHA512

d456a87cd44dba0210e5459e59f76db9cd16fd7e3e1c6745d1e05f67e9cb09e924fc4f43362b6b17018e42f2bfc36681e251b3bd829ca50d3d20a74deff6ad38
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITkF:qDdFJy3QMOtEvwDpjjWMl7Ti

Score

7^/10

discovery upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	2024-10-05_c9e5890ba2d2d5d08a2269c8b9fc51e0_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2424	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1096-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x0008000000023459-13.dat	upx
behavioral2/memory/1096-18-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/2424-27-0x0000000000500000-0x0000000000510000-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	2024-10-05_c9e5890ba2d2d5d08a2269c8b9fc51e0_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1096 wrote to memory of 2424	1096	2024-10-05_c9e5890ba2d2d5d08a2269c8b9fc51e0_cryptolocker.exe	82
PID 1096 wrote to memory of 2424	1096	2024-10-05_c9e5890ba2d2d5d08a2269c8b9fc51e0_cryptolocker.exe	82
PID 1096 wrote to memory of 2424	1096	2024-10-05_c9e5890ba2d2d5d08a2269c8b9fc51e0_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-10-05_c9e5890ba2d2d5d08a2269c8b9fc51e0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-05_c9e5890ba2d2d5d08a2269c8b9fc51e0_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1096
- 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:2424

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

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

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

Filesize
39KB

MD5
9ae1e4a48641ce80b6f53c043799e8b5

SHA1
47ddd602751bcf4b28ed1f75dd3e80cc0029ad91

SHA256
a73b3bad6368f47c30946de7ec4564e3e1704f9e8cabe76a5c477d4997092b4c

SHA512
ea6405796272c2baac99813abfbb70b71b03410885ccbf98cc864d9067a168f6f6ef7fd0f2289b6cd937a5790a3f8a4d3e617a54deacadfc34c0c916016ad149

Download Submit
memory/1096-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1096-1-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/1096-2-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/1096-3-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/1096-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2424-21-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/2424-20-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/2424-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download