purecrypter | 7028532110df76fd267d80153b26e0f5bc23660da571fed3a384e662c3892f11

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13-09-2024 07:18

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General

Target

ddf050af2bbaaceb9ab27facc2240dfe_JaffaCakes118.exe
Size

18KB
MD5

ddf050af2bbaaceb9ab27facc2240dfe
SHA1

1193d161fd69393508f4a4ff244e98278381ae71
SHA256

7028532110df76fd267d80153b26e0f5bc23660da571fed3a384e662c3892f11
SHA512

1088c9df494e8d4ba5dec0e6d8019a64f6de8f5c7cd42a12044ab7f6f5f83cb9a630fcefe45b0f0417f437f3404a3bdaecf5367b3615d9898dff50f85b088bd2
SSDEEP

384:4K9UXI4X3VgI0ZM5KamFKDQCkEKDVbJEp5KDGPGAnZf:4KmA4K7p9mPGKZf

Score

10^/10

purecrypter discovery downloader loader

Malware Config

Extracted

Family

purecrypter

https://store2.gofile.io/download/38942a0f-72a3-4786-993a-4d304342d755/Zgejnrtx.dll

Signatures

PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
loader downloader purecrypter
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2828 2148 WerFault.exe ddf050af2bbaaceb9ab27facc2240dfe_JaffaCakes118.exe
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

Processes:

ddf050af2bbaaceb9ab27facc2240dfe_JaffaCakes118.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ddf050af2bbaaceb9ab27facc2240dfe_JaffaCakes118.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

ddf050af2bbaaceb9ab27facc2240dfe_JaffaCakes118.exe

description pid process

Token: SeDebugPrivilege 2148 ddf050af2bbaaceb9ab27facc2240dfe_JaffaCakes118.exe

pid	pid_target	process	target process
2828	2148	WerFault.exe	ddf050af2bbaaceb9ab27facc2240dfe_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ddf050af2bbaaceb9ab27facc2240dfe_JaffaCakes118.exe

description	pid	process
Token: SeDebugPrivilege	2148	ddf050af2bbaaceb9ab27facc2240dfe_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

ddf050af2bbaaceb9ab27facc2240dfe_JaffaCakes118.exe

description	pid	process	target process
PID 2148 wrote to memory of 2828	2148	ddf050af2bbaaceb9ab27facc2240dfe_JaffaCakes118.exe	WerFault.exe
PID 2148 wrote to memory of 2828	2148	ddf050af2bbaaceb9ab27facc2240dfe_JaffaCakes118.exe	WerFault.exe
PID 2148 wrote to memory of 2828	2148	ddf050af2bbaaceb9ab27facc2240dfe_JaffaCakes118.exe	WerFault.exe
PID 2148 wrote to memory of 2828	2148	ddf050af2bbaaceb9ab27facc2240dfe_JaffaCakes118.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\ddf050af2bbaaceb9ab27facc2240dfe_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ddf050af2bbaaceb9ab27facc2240dfe_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2148
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2148 -s 1132
  2⤵
  - Program crash
  PID:2828

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2148-0-0x000000007423E000-0x000000007423F000-memory.dmp

Filesize
4KB

Download
memory/2148-1-0x0000000001040000-0x000000000104A000-memory.dmp

Filesize
40KB

Download
memory/2148-2-0x0000000074230000-0x000000007491E000-memory.dmp

Filesize
6.9MB

Download
memory/2148-3-0x0000000074230000-0x000000007491E000-memory.dmp

Filesize
6.9MB

Download