de4e1e6bae2691c9ade20752ec4b3d4013bad8271f15ce0465d3d4b4965c9a1e

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
27/09/2024, 18:56

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General

Target

2024-09-27_6cd9e5086e82f6b76f9fa7c7de04a8bb_cryptolocker.exe
Size

40KB
MD5

6cd9e5086e82f6b76f9fa7c7de04a8bb
SHA1

099e9f25528ffdd8245d1ee0b1ca58c87afcb870
SHA256

de4e1e6bae2691c9ade20752ec4b3d4013bad8271f15ce0465d3d4b4965c9a1e
SHA512

325ffa6b4135ecd9762c1d5976eeaab509262e251f570c5a4838d27584f59830d02fbafb7217a74196e097b3082ca21d27ab0b5f6c682b0242ff982c5f514feb
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYaIdX:qDdFJy3QMOtEvwDpjjWMl7TdAX

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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	2024-09-27_6cd9e5086e82f6b76f9fa7c7de04a8bb_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
5108	asih.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1724-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x00080000000234c6-12.dat	upx
behavioral2/memory/5108-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/1724-20-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/5108-28-0x0000000000500000-0x0000000000510000-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	2024-09-27_6cd9e5086e82f6b76f9fa7c7de04a8bb_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 1724 wrote to memory of 5108	1724	2024-09-27_6cd9e5086e82f6b76f9fa7c7de04a8bb_cryptolocker.exe	82
PID 1724 wrote to memory of 5108	1724	2024-09-27_6cd9e5086e82f6b76f9fa7c7de04a8bb_cryptolocker.exe	82
PID 1724 wrote to memory of 5108	1724	2024-09-27_6cd9e5086e82f6b76f9fa7c7de04a8bb_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-09-27_6cd9e5086e82f6b76f9fa7c7de04a8bb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-27_6cd9e5086e82f6b76f9fa7c7de04a8bb_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1724
- 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:5108

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
40KB

MD5
b5c38d30acb9cd617581db2e37569d41

SHA1
5131a71d9472f98714adbde41340a0e2dd573d87

SHA256
98563dde18fdb3beaf61ccd73a756d36d7c530e2ca76edc989c8514b75c42164

SHA512
bfbdeb21c0b9b881978ae8db50ff5704066bf21b622a8bd01a3ff863c735a821359abbf4cb0242151bd16ad850fd614956163b665aacd5c9bc7e7fd383346950

Download Submit
memory/1724-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1724-1-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download
memory/1724-2-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download
memory/1724-3-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/1724-20-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/5108-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/5108-21-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/5108-27-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/5108-28-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download