9e26daadb54d87c605af1e9d32baa968937b27c83d2fcf2d98aadbf46ac2df30

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
03/06/2024, 06:35

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General

Target

2024-06-03_897ee574e4c453d126f9b5e69e2bbf37_cryptolocker.exe
Size

43KB
MD5

897ee574e4c453d126f9b5e69e2bbf37
SHA1

b5832bf7d0e221b10e2bdf3c860c3af8274d05ac
SHA256

9e26daadb54d87c605af1e9d32baa968937b27c83d2fcf2d98aadbf46ac2df30
SHA512

d984020902f3b63883f3355734604615aeda1696c8389fe3032298d9d1f9b3bf07ca4fc401b18142f96d4acc09a96b49ab35810b27bc48f843c1d8a83386230b
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6DyE9x3fpI:bIDOw9a0Dwo3P1ojvUSD79R6

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023278-12.dat	CryptoLocker_rule2

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-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	2024-06-03_897ee574e4c453d126f9b5e69e2bbf37_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3484	lossy.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 2760 wrote to memory of 3484	2760	2024-06-03_897ee574e4c453d126f9b5e69e2bbf37_cryptolocker.exe	82
PID 2760 wrote to memory of 3484	2760	2024-06-03_897ee574e4c453d126f9b5e69e2bbf37_cryptolocker.exe	82
PID 2760 wrote to memory of 3484	2760	2024-06-03_897ee574e4c453d126f9b5e69e2bbf37_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-06-03_897ee574e4c453d126f9b5e69e2bbf37_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-03_897ee574e4c453d126f9b5e69e2bbf37_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2760
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:3484

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

Replay Monitor

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Downloads

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

Filesize
44KB

MD5
5113f62bbb9f75d5841f2c6fb6ae3c0f

SHA1
c75bbc71553c49e6c2d09d3598ddec52ac862b68

SHA256
2b457b1f64fe39d79c5d9ed0e28311fb223f16d77bff85b0e2892e88ab78aef6

SHA512
e75a694caa4885fa714fd9c2fe72527ffc65b56091a06cbc10c29d57bfcee1097bc7bb723e2a00a847e814f0bee07d320d3863ff65fc412e43f53fda045ed814

Download Submit
memory/2760-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/2760-1-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/2760-8-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/3484-17-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/3484-23-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download