e15309cd3a28818d406d1025e71a01b1a1d55962537e6f7f42d2978d2b077f6d

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19/09/2024, 04:30

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General

Target

2024-09-19_7fff93b0e673051f866377c20608a739_cryptolocker.exe
Size

92KB
MD5

7fff93b0e673051f866377c20608a739
SHA1

61b5643a5d5d210be4668a971c96a0fafa0542e6
SHA256

e15309cd3a28818d406d1025e71a01b1a1d55962537e6f7f42d2978d2b077f6d
SHA512

8e897773775615bb9417cb0728dc26df45089d8e64a09700f8b5df6b95d761069b276c5d49f7a1c7d042b60238e6e59b72e77ee316725aaa404db38849e9fe1f
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwMgddBH:AnBdOOtEvwDpj6zV

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-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	2024-09-19_7fff93b0e673051f866377c20608a739_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2652	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1228-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x0008000000023497-13.dat	upx
behavioral2/memory/1228-18-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/2652-26-0x0000000000500000-0x000000000050F000-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	2024-09-19_7fff93b0e673051f866377c20608a739_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 1228 wrote to memory of 2652	1228	2024-09-19_7fff93b0e673051f866377c20608a739_cryptolocker.exe	82
PID 1228 wrote to memory of 2652	1228	2024-09-19_7fff93b0e673051f866377c20608a739_cryptolocker.exe	82
PID 1228 wrote to memory of 2652	1228	2024-09-19_7fff93b0e673051f866377c20608a739_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-09-19_7fff93b0e673051f866377c20608a739_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_7fff93b0e673051f866377c20608a739_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1228
- 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:2652

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
92KB

MD5
62848a50d403dde57f66acb7b9295727

SHA1
4391c030f5ba9f8ace75ea61d0cffc7d03cf2b6f

SHA256
bf4ac4cb4e87fc1407bf916c5415754711ee2efbaec8e3f6251de6c62394e2f2

SHA512
d012d3671f433dd02e15dc7de127f675963a2d2c342d2af316af29f5e05c9aaeb3ea200c8a2781eeef93d1ddab8951372c084f182aa4667ca18c9ff2b4e3eac6

Download Submit
memory/1228-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1228-1-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/1228-2-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/1228-3-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/1228-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2652-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download