purelogstealer | 81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
22-08-2024 22:37

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General

Target

81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe
Size

976KB
MD5

902f14b6f32cc40a82d6a0f2c41208ec
SHA1

c01e5bc3e9dbb84a5b36841045055999fc0a16cf
SHA256

81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa
SHA512

d55e184309e122ffbe3097bfb64b3e23829228cd16030dca5856bfa1725bc60c2da04bf04c8919ca658ca4b7b03e4be6e6bc9240b5816903609969213be2f97c
SSDEEP

24576:1Ibj07xMVrpydHnnDfiDw8PZIykCu3oxmv2GX:1+ukYxDqnZTlns2

Score

10^/10

purelogstealer discovery persistence stealer

Malware Config

Signatures

PureLog Stealer
PureLog Stealer is an infostealer written in C#.
stealer purelogstealer

PureLog Stealer payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2672-1-0x00000000008A0000-0x000000000099A000-memory.dmp	family_purelog_stealer

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000\Software\Microsoft\Windows\CurrentVersion\Run\afasdfga = "C:\\Users\\Admin\\AppData\\Roaming\\afasdfga.exe"	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

5064 2672 WerFault.exe 81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe

pid	pid_target	process	target process
5064	2672	WerFault.exe	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.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:

81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe

pid process

2672 81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe

pid	process
2672	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe

description	pid	process
Token: SeDebugPrivilege	2672	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe
Token: SeDebugPrivilege	2672	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe

description	pid	process	target process
PID 2672 wrote to memory of 5064	2672	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe	WerFault.exe
PID 2672 wrote to memory of 5064	2672	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe	WerFault.exe
PID 2672 wrote to memory of 5064	2672	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe	WerFault.exe
PID 2672 wrote to memory of 5064	2672	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe
"C:\Users\Admin\AppData\Local\Temp\81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2672
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2672 -s 624
  2⤵
  - Program crash
  PID:5064

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

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/2672-0-0x0000000073F8E000-0x0000000073F8F000-memory.dmp

Filesize
4KB

Download
memory/2672-1-0x00000000008A0000-0x000000000099A000-memory.dmp

Filesize
1000KB

Download
memory/2672-2-0x0000000004B80000-0x0000000004C5C000-memory.dmp

Filesize
880KB

Download
memory/2672-3-0x0000000073F80000-0x000000007466E000-memory.dmp

Filesize
6.9MB

Download
memory/2672-4-0x0000000004C60000-0x0000000004D3C000-memory.dmp

Filesize
880KB

Download
memory/2672-16-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-40-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-56-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-58-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-66-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-64-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-32-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-30-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-14-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-12-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-10-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-68-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-62-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-60-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-54-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-52-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-50-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-48-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-46-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-44-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-42-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-38-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-36-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-34-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-28-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-26-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-24-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-22-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-20-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-18-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-8-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-6-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-5-0x0000000004C60000-0x0000000004D36000-memory.dmp

Filesize
856KB

Download
memory/2672-1077-0x0000000073F80000-0x000000007466E000-memory.dmp

Filesize
6.9MB

Download
memory/2672-1079-0x0000000000850000-0x000000000089C000-memory.dmp

Filesize
304KB

Download
memory/2672-1078-0x0000000004280000-0x00000000042D8000-memory.dmp

Filesize
352KB

Download
memory/2672-1080-0x0000000073F8E000-0x0000000073F8F000-memory.dmp

Filesize
4KB

Download
memory/2672-1081-0x0000000073F80000-0x000000007466E000-memory.dmp

Filesize
6.9MB

Download
memory/2672-1082-0x0000000005110000-0x0000000005164000-memory.dmp

Filesize
336KB

Download