fdbf6b2f625e32e48ca40fc115dcc0199e7d188c6af1b4bc6c6ee0c6a2f069ee

Analysis

max time kernel
1s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-10-2024 08:09

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General

Target

2024-10-31_fb1bb2b27684b95c73a511d6c73f4276_cryptolocker.exe
Size

95KB
MD5

fb1bb2b27684b95c73a511d6c73f4276
SHA1

73aa5354c05653072f9bff0183a40d10772176a0
SHA256

fdbf6b2f625e32e48ca40fc115dcc0199e7d188c6af1b4bc6c6ee0c6a2f069ee
SHA512

d044fd218deaa7290e5bdd8bd7bad164348d7a9f7b661245b4b1760105917c218ad5600a0d358df776809920f43482315361dfbaf1f281f29f72327874d4fad8
SSDEEP

1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRDjgx/kAdp:zCsanOtEvwDpjB/

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	2024-10-31_fb1bb2b27684b95c73a511d6c73f4276_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1856-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x0009000000023c5a-13.dat	upx
behavioral2/memory/1856-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/1592-48-0x0000000000500000-0x0000000000510000-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 1 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	2024-10-31_fb1bb2b27684b95c73a511d6c73f4276_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1856 wrote to memory of 1592	1856	2024-10-31_fb1bb2b27684b95c73a511d6c73f4276_cryptolocker.exe	86
PID 1856 wrote to memory of 1592	1856	2024-10-31_fb1bb2b27684b95c73a511d6c73f4276_cryptolocker.exe	86
PID 1856 wrote to memory of 1592	1856	2024-10-31_fb1bb2b27684b95c73a511d6c73f4276_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-10-31_fb1bb2b27684b95c73a511d6c73f4276_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-31_fb1bb2b27684b95c73a511d6c73f4276_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1856
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  PID:1592

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\misid.exe

Filesize
95KB

MD5
e92285082201052a439cefb5f9126ad4

SHA1
e36ecabecedbe9ef8c4c6974bcf94d47a09c897e

SHA256
1ed2b609747f297af3098df7dce864b5574651ef7fababab50397b4a8aeea1a5

SHA512
1c496e7bdd5ab7917a4983578d894da6e5839dd35a680810c6ae46fcfd2b7c782d1aadc3124105e50ddeb81b58524b16e9e8474f7c61b10dfc634ce2c8cc1f64

Download Submit
C:\Users\Admin\AppData\Local\Temp\misids.exe

Filesize
315B

MD5
a34ac19f4afae63adc5d2f7bc970c07f

SHA1
a82190fc530c265aa40a045c21770d967f4767b8

SHA256
d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

SHA512
42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

Download Submit
memory/1592-20-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/1592-19-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1592-48-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1856-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1856-2-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download
memory/1856-3-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download
memory/1856-1-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download
memory/1856-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download