purecrypter | 6ad6f24871ddeedb5dd1fd49abec8faae3a0809b3211c7ecce5fbce40dd28a75

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
17-09-2024 10:38

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General

Target

e6a304a190393045871a1144609dc414_JaffaCakes118.exe
Size

12KB
MD5

e6a304a190393045871a1144609dc414
SHA1

3606ac6e3d8ee7087e8a92da44bdbf6169794bb0
SHA256

6ad6f24871ddeedb5dd1fd49abec8faae3a0809b3211c7ecce5fbce40dd28a75
SHA512

0b1e93ba45bbc756a8cc2838272b7e0427553a4f464b3c46fb0490a51ea19a8ae88932f1b9dd177ed2a797c3d53ab59d71d1afa73f3c65262a31455c24b68261
SSDEEP

192:pLU/9thAs3VkI0Z2tQN6WcoEuQqMT0U2/JT0JN7Kaemj:pLU/9tis3VkI0Z2iN6NBpnT0UUKN7KO

Score

10^/10

purecrypter discovery downloader loader

Malware Config

Extracted

Family

purecrypter

https://store2.gofile.io/download/15a5b26e-809f-49c3-aa8f-3c0a207e9711/Fsyymzlzzxciphnzblhopzku.dll

Signatures

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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2668	2712	WerFault.exe	29

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e6a304a190393045871a1144609dc414_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2712	e6a304a190393045871a1144609dc414_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2712 wrote to memory of 2668	2712	e6a304a190393045871a1144609dc414_JaffaCakes118.exe	31
PID 2712 wrote to memory of 2668	2712	e6a304a190393045871a1144609dc414_JaffaCakes118.exe	31
PID 2712 wrote to memory of 2668	2712	e6a304a190393045871a1144609dc414_JaffaCakes118.exe	31
PID 2712 wrote to memory of 2668	2712	e6a304a190393045871a1144609dc414_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\e6a304a190393045871a1144609dc414_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e6a304a190393045871a1144609dc414_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2712
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2712 -s 1128
  2⤵
  - Program crash
  PID:2668

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

Replay Monitor

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Downloads

memory/2712-0-0x000000007420E000-0x000000007420F000-memory.dmp

Filesize
4KB

Download
memory/2712-1-0x0000000000DE0000-0x0000000000DE8000-memory.dmp

Filesize
32KB

Download
memory/2712-2-0x0000000074200000-0x00000000748EE000-memory.dmp

Filesize
6.9MB

Download
memory/2712-3-0x000000007420E000-0x000000007420F000-memory.dmp

Filesize
4KB

Download
memory/2712-4-0x0000000074200000-0x00000000748EE000-memory.dmp

Filesize
6.9MB

Download