25ad9b12af81b84db6b1ad0a36d3f70088cee191c229bf9c52e6caac9a84f00a

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
07-03-2024 01:08

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General

Target

2024-03-07_dd812ab018b5b1f90dda8d1c5b3aed02_cryptolocker.exe
Size

53KB
MD5

dd812ab018b5b1f90dda8d1c5b3aed02
SHA1

53fe264b71188a354489e1fff9d632f1ee7d3a7d
SHA256

25ad9b12af81b84db6b1ad0a36d3f70088cee191c229bf9c52e6caac9a84f00a
SHA512

df97678b39fde712e9095183f24b5d5f6289866b67534283a32447fa3dc425956a490e897982e07374641852132ff9e057a72861e39ad649f8c665a6152f0e2e
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4hdCW1nw71TkhsiPn1YFv6dy/lAGCA:vj+jsMQMOtEvwDpj5HH1nw73KOFf9CA

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e9a0-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e9a0-12.dat	CryptoLocker_set1

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-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation	2024-03-07_dd812ab018b5b1f90dda8d1c5b3aed02_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2724	misid.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4984 wrote to memory of 2724	4984	2024-03-07_dd812ab018b5b1f90dda8d1c5b3aed02_cryptolocker.exe	88
PID 4984 wrote to memory of 2724	4984	2024-03-07_dd812ab018b5b1f90dda8d1c5b3aed02_cryptolocker.exe	88
PID 4984 wrote to memory of 2724	4984	2024-03-07_dd812ab018b5b1f90dda8d1c5b3aed02_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-07_dd812ab018b5b1f90dda8d1c5b3aed02_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-07_dd812ab018b5b1f90dda8d1c5b3aed02_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4984
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2724

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
53KB

MD5
2d551544cc30869d77146701435a7255

SHA1
eeffc216cfff297d77f587755d45f8ff1b50ab66

SHA256
d066ac5ee791d40484cc3a00cce136780b585096e43fb8ee0485711bd8279297

SHA512
d90b52ecd30995428974247537cd95a6baa3e8961dbd9b9175936fd149f03c3bf76580dd183232dfa2b1ac6e323c47316331bde9f25fed0cc4f37214587b3c84

Download Submit
memory/2724-17-0x0000000002000000-0x0000000002006000-memory.dmp

Filesize
24KB

Download
memory/2724-21-0x0000000001FE0000-0x0000000001FE6000-memory.dmp

Filesize
24KB

Download
memory/4984-0-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/4984-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/4984-2-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download