purelogstealer | 81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa

Analysis

max time kernel
195s
max time network
305s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-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
behavioral2/memory/2280-1-0x0000000000930000-0x0000000000A2A000-memory.dmp	family_purelog_stealer

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

Processes:

81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe

description pid process target process

PID 2280 created 3284 2280 81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe Explorer.EXE

description	pid	process	target process
PID 2280 created 3284	2280	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe	Explorer.EXE

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-1-5-21-3968772205-1713802336-1776639840-1000\Software\Microsoft\Windows\CurrentVersion\Run\afasdfga = "C:\\Users\\Admin\\AppData\\Roaming\\afasdfga.exe"	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe

description	pid	process	target process
PID 2280 set thread context of 5072	2280	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.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

2280 81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe

pid	process
2280	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe

description	pid	process
Token: SeDebugPrivilege	2280	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe
Token: SeDebugPrivilege	2280	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe

description	pid	process	target process
PID 2280 wrote to memory of 5072	2280	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe
PID 2280 wrote to memory of 5072	2280	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe
PID 2280 wrote to memory of 5072	2280	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe
PID 2280 wrote to memory of 5072	2280	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe
PID 2280 wrote to memory of 5072	2280	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe
PID 2280 wrote to memory of 5072	2280	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe
PID 2280 wrote to memory of 5072	2280	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe
PID 2280 wrote to memory of 5072	2280	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe	81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3284
- C:\Users\Admin\AppData\Local\Temp\81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe
  "C:\Users\Admin\AppData\Local\Temp\81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2280
- C:\Users\Admin\AppData\Local\Temp\81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe
  "C:\Users\Admin\AppData\Local\Temp\81f91061c650c2d9fdeab6a9d8be220a93d46f930d5c435e4a00c511236a4caa.exe"
  2⤵
  PID:5072

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/2280-0-0x0000000073DBE000-0x0000000073DBF000-memory.dmp

Filesize
4KB

Download
memory/2280-1-0x0000000000930000-0x0000000000A2A000-memory.dmp

Filesize
1000KB

Download
memory/2280-2-0x00000000051C0000-0x000000000529C000-memory.dmp

Filesize
880KB

Download
memory/2280-3-0x0000000073DB0000-0x000000007449E000-memory.dmp

Filesize
6.9MB

Download
memory/2280-4-0x0000000005350000-0x000000000542C000-memory.dmp

Filesize
880KB

Download
memory/2280-10-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-14-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-69-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-54-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-44-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-34-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-30-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-28-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-26-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-24-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-22-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-20-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-18-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-16-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-12-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-32-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-8-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-6-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-5-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-66-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-64-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-62-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-60-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-58-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-56-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-52-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-50-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-48-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-46-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-42-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-40-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-38-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-36-0x0000000005350000-0x0000000005426000-memory.dmp

Filesize
856KB

Download
memory/2280-1077-0x0000000073DB0000-0x000000007449E000-memory.dmp

Filesize
6.9MB

Download
memory/2280-1078-0x00000000054B0000-0x0000000005508000-memory.dmp

Filesize
352KB

Download
memory/2280-1079-0x0000000005450000-0x000000000549C000-memory.dmp

Filesize
304KB

Download
memory/2280-1083-0x0000000073DB0000-0x000000007449E000-memory.dmp

Filesize
6.9MB

Download
memory/2280-1084-0x0000000073DB0000-0x000000007449E000-memory.dmp

Filesize
6.9MB

Download
memory/2280-1085-0x0000000073DB0000-0x000000007449E000-memory.dmp

Filesize
6.9MB

Download
memory/2280-1086-0x0000000073DBE000-0x0000000073DBF000-memory.dmp

Filesize
4KB

Download
memory/2280-1087-0x0000000005E40000-0x000000000633E000-memory.dmp

Filesize
5.0MB

Download
memory/2280-1088-0x00000000055E0000-0x0000000005634000-memory.dmp

Filesize
336KB

Download
memory/2280-1093-0x0000000073DB0000-0x000000007449E000-memory.dmp

Filesize
6.9MB

Download