purecrypter | 0dd86dcb86cc31b25987d1e8a5cc66a9377768d4134dc17c52d0252c04e720a6

Analysis

max time kernel
140s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24-12-2024 02:22

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General

Target

JaffaCakes118_0dd86dcb86cc31b25987d1e8a5cc66a9377768d4134dc17c52d0252c04e720a6.exe
Size

13KB
MD5

3b17340ba3d0ae3480e19749deeae596
SHA1

2e2a1ac5934433154785333298ecd90afbc4cc7d
SHA256

0dd86dcb86cc31b25987d1e8a5cc66a9377768d4134dc17c52d0252c04e720a6
SHA512

126844f3dc226ac85d1528c7160b6d7ac7a6b7e7c6aab960bcc5721ce8dab831bf717ccbf58aa259108fb898aa5f6f076fb51a5c9ef9e3f5bd20b9df7cc94fbe
SSDEEP

384:zJPrpSI+sAtNS1L8+zWYv+hbzX00aB4sufffffehB:zWSV8+Kxbb0yk

Score

10^/10

purecrypter downloader loader

Malware Config

Extracted

Family

purecrypter

http://safeinthehandsofthegoodbois.com/loader/uploads/Aslrz_Ethapkbn.png

Signatures

PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
loader downloader purecrypter
Purecrypter family
purecrypter

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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	JaffaCakes118_0dd86dcb86cc31b25987d1e8a5cc66a9377768d4134dc17c52d0252c04e720a6.exe

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

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1232	timeout.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3204	JaffaCakes118_0dd86dcb86cc31b25987d1e8a5cc66a9377768d4134dc17c52d0252c04e720a6.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3204 wrote to memory of 2232	3204	JaffaCakes118_0dd86dcb86cc31b25987d1e8a5cc66a9377768d4134dc17c52d0252c04e720a6.exe	83
PID 3204 wrote to memory of 2232	3204	JaffaCakes118_0dd86dcb86cc31b25987d1e8a5cc66a9377768d4134dc17c52d0252c04e720a6.exe	83
PID 2232 wrote to memory of 1232	2232	cmd.exe	85
PID 2232 wrote to memory of 1232	2232	cmd.exe	85

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0dd86dcb86cc31b25987d1e8a5cc66a9377768d4134dc17c52d0252c04e720a6.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0dd86dcb86cc31b25987d1e8a5cc66a9377768d4134dc17c52d0252c04e720a6.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3204
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout /t 10
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2232
- - C:\Windows\system32\timeout.exe
    timeout /t 10
    3⤵
    - Delays execution with timeout.exe
    PID:1232

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

memory/3204-0-0x00007FFA395E3000-0x00007FFA395E5000-memory.dmp

Filesize
8KB

Download
memory/3204-1-0x0000000000E70000-0x0000000000E78000-memory.dmp

Filesize
32KB

Download
memory/3204-2-0x00007FFA395E0000-0x00007FFA3A0A1000-memory.dmp

Filesize
10.8MB

Download
memory/3204-3-0x00007FFA395E3000-0x00007FFA395E5000-memory.dmp

Filesize
8KB

Download
memory/3204-4-0x000000001CBB0000-0x000000001CD59000-memory.dmp

Filesize
1.7MB

Download
memory/3204-5-0x00007FFA395E0000-0x00007FFA3A0A1000-memory.dmp

Filesize
10.8MB

Download
memory/3204-6-0x00007FFA395E0000-0x00007FFA3A0A1000-memory.dmp

Filesize
10.8MB

Download
memory/3204-7-0x000000001CBB0000-0x000000001CD59000-memory.dmp

Filesize
1.7MB

Download
memory/3204-8-0x00007FFA395E0000-0x00007FFA3A0A1000-memory.dmp

Filesize
10.8MB

Download