purecrypter | 4e658159df74c5e24e1548f5304b1bc881f7986bf43fb687c07e8f5fb531108d

Analysis

max time kernel
136s
max time network
131s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21-08-2024 18:31

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General

Target

b48fbc4f8c0f1e01f596e9d336145f99_JaffaCakes118.exe
Size

23KB
MD5

b48fbc4f8c0f1e01f596e9d336145f99
SHA1

c55f53523e99d7582365c923fe7dba52338155e5
SHA256

4e658159df74c5e24e1548f5304b1bc881f7986bf43fb687c07e8f5fb531108d
SHA512

7a3dc433be3694caf13baafc0c93b13601a19fd1e20b8b8c7aabf91ea590f9fd9939ca2cf053ab10ed0ea94d8eb37730f03e576e8d912b0844f062bf4319b164
SSDEEP

384:rx6Bt2X3mgI+Z6ApYAVLK624DJd/SidRssDFmEH/:r1lpY4LK6JZSidGsxmEf

Score

10^/10

purecrypter discovery downloader loader

Malware Config

Extracted

Family

purecrypter

https://store2.gofile.io/download/941dab3b-244e-45a8-b155-2eb3eb9dfd56/Borushdw.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

1540 1304 WerFault.exe b48fbc4f8c0f1e01f596e9d336145f99_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:

b48fbc4f8c0f1e01f596e9d336145f99_JaffaCakes118.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b48fbc4f8c0f1e01f596e9d336145f99_JaffaCakes118.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

b48fbc4f8c0f1e01f596e9d336145f99_JaffaCakes118.exe

description pid process

Token: SeDebugPrivilege 1304 b48fbc4f8c0f1e01f596e9d336145f99_JaffaCakes118.exe

pid	pid_target	process	target process
1540	1304	WerFault.exe	b48fbc4f8c0f1e01f596e9d336145f99_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b48fbc4f8c0f1e01f596e9d336145f99_JaffaCakes118.exe

description	pid	process
Token: SeDebugPrivilege	1304	b48fbc4f8c0f1e01f596e9d336145f99_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\b48fbc4f8c0f1e01f596e9d336145f99_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b48fbc4f8c0f1e01f596e9d336145f99_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1304
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1304 -s 1788
  2⤵
  - Program crash
  PID:1540

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4152,i,8548254608087149642,10333768245962368401,262144 --variations-seed-version --mojo-platform-channel-handle=4036 /prefetch:8
1⤵
PID:1484

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1304 -ip 1304
1⤵
PID:4752

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/1304-0-0x0000000074A4E000-0x0000000074A4F000-memory.dmp

Filesize
4KB

Download
memory/1304-1-0x0000000000F00000-0x0000000000F0C000-memory.dmp

Filesize
48KB

Download
memory/1304-2-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/1304-3-0x0000000074A4E000-0x0000000074A4F000-memory.dmp

Filesize
4KB

Download
memory/1304-4-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/1304-5-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download