410cf109c640dc1a18f2e660957aaa632bbd3ec0a56ad237ea4c5e1f60c81018

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10-10-2024 05:16

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General

Target

2024-10-10_ab989bbbd2d7eb1aa8a1afd9668f6029_cryptolocker.exe
Size

36KB
MD5

ab989bbbd2d7eb1aa8a1afd9668f6029
SHA1

7dcb8d25b596f04adb6abd5536da6d13e2bfa2db
SHA256

410cf109c640dc1a18f2e660957aaa632bbd3ec0a56ad237ea4c5e1f60c81018
SHA512

b99da6b3b7c6c5fe6b8e5c2321bb53e3460d1cfec3a2f819992de7e93b21ed46db20e7dd21516633acb42c4e1cd96086395ddcf90fa3bba9b17e2d6a5b97d946
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITb:qDdFJy3QMOtEvwDpjjWMl7Tb

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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	2024-10-10_ab989bbbd2d7eb1aa8a1afd9668f6029_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4140	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1176-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x000a000000023c44-13.dat	upx
behavioral2/memory/1176-18-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/4140-27-0x0000000000500000-0x0000000000510000-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	asih.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-10_ab989bbbd2d7eb1aa8a1afd9668f6029_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1176 wrote to memory of 4140	1176	2024-10-10_ab989bbbd2d7eb1aa8a1afd9668f6029_cryptolocker.exe	85
PID 1176 wrote to memory of 4140	1176	2024-10-10_ab989bbbd2d7eb1aa8a1afd9668f6029_cryptolocker.exe	85
PID 1176 wrote to memory of 4140	1176	2024-10-10_ab989bbbd2d7eb1aa8a1afd9668f6029_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-10-10_ab989bbbd2d7eb1aa8a1afd9668f6029_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-10_ab989bbbd2d7eb1aa8a1afd9668f6029_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1176
- 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:4140

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

Replay Monitor

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Downloads

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

Filesize
37KB

MD5
6603a678612de0a520c1f85cc2aae212

SHA1
bec45bc5c456317f77527fa19f1bf51471f2b38c

SHA256
1df7a1cfb81c399f1f056ff324bae5a0c11a0429423c3453cfa505a20b82656d

SHA512
0f26606e56c1f46fe81f0e832b76d3c23ee9607f4b0bfde75a9a1fef5f1cb5b3da85336bf7ea18eda83efc2631b678b76633da3cf7fb7f4b33da06fa0574b4ce

Download Submit
memory/1176-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1176-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1176-2-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1176-3-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/1176-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4140-20-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/4140-26-0x0000000000640000-0x0000000000646000-memory.dmp

Filesize
24KB

Download
memory/4140-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download