purelogstealer | cf39da21fcf7f367eb0df5e02d1f1dc8c88126482199d5db386e78660f1b570a

Analysis

max time kernel
106s
max time network
106s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
24-08-2024 19:18

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General

Target

b71836316f2222c3651e8a99cf6432a0N.exe
Size

1.3MB
MD5

b71836316f2222c3651e8a99cf6432a0
SHA1

b175856f4556c960dcd75384aa3172c1ac2968ba
SHA256

cf39da21fcf7f367eb0df5e02d1f1dc8c88126482199d5db386e78660f1b570a
SHA512

b20194b370a2cfdce43d8ef8458c4376691e22523771d52d17ce4112b1e4cfe5a82641767ed204506797165e619a176000fed156565acb753e89cc6f228309ea
SSDEEP

24576:JbUfjlJfLcXI86oA+uzJtoehgDvGrtqb5SxYJQ1qm64bX:+fjjzx86v/JtodDvy+SGyqmPX

Score

10^/10

purelogstealer discovery 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/3240-1-0x00000000003E0000-0x0000000000534000-memory.dmp	family_purelog_stealer

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

Processes:

b71836316f2222c3651e8a99cf6432a0N.exe

description pid process target process

PID 3240 created 3536 3240 b71836316f2222c3651e8a99cf6432a0N.exe Explorer.EXE
Suspicious use of SetThreadContext 1 IoCs

Processes:

b71836316f2222c3651e8a99cf6432a0N.exe

description pid process target process

PID 3240 set thread context of 1060 3240 b71836316f2222c3651e8a99cf6432a0N.exe MSBuild.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:

b71836316f2222c3651e8a99cf6432a0N.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b71836316f2222c3651e8a99cf6432a0N.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

b71836316f2222c3651e8a99cf6432a0N.exe

pid process

3240 b71836316f2222c3651e8a99cf6432a0N.exe

description	pid	process	target process
PID 3240 created 3536	3240	b71836316f2222c3651e8a99cf6432a0N.exe	Explorer.EXE

description	pid	process	target process
PID 3240 set thread context of 1060	3240	b71836316f2222c3651e8a99cf6432a0N.exe	MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b71836316f2222c3651e8a99cf6432a0N.exe

pid	process
3240	b71836316f2222c3651e8a99cf6432a0N.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

b71836316f2222c3651e8a99cf6432a0N.exe

description	pid	process
Token: SeDebugPrivilege	3240	b71836316f2222c3651e8a99cf6432a0N.exe
Token: SeDebugPrivilege	3240	b71836316f2222c3651e8a99cf6432a0N.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

b71836316f2222c3651e8a99cf6432a0N.exe

description	pid	process	target process
PID 3240 wrote to memory of 1060	3240	b71836316f2222c3651e8a99cf6432a0N.exe	MSBuild.exe
PID 3240 wrote to memory of 1060	3240	b71836316f2222c3651e8a99cf6432a0N.exe	MSBuild.exe
PID 3240 wrote to memory of 1060	3240	b71836316f2222c3651e8a99cf6432a0N.exe	MSBuild.exe
PID 3240 wrote to memory of 1060	3240	b71836316f2222c3651e8a99cf6432a0N.exe	MSBuild.exe
PID 3240 wrote to memory of 1060	3240	b71836316f2222c3651e8a99cf6432a0N.exe	MSBuild.exe
PID 3240 wrote to memory of 1060	3240	b71836316f2222c3651e8a99cf6432a0N.exe	MSBuild.exe
PID 3240 wrote to memory of 1060	3240	b71836316f2222c3651e8a99cf6432a0N.exe	MSBuild.exe
PID 3240 wrote to memory of 1060	3240	b71836316f2222c3651e8a99cf6432a0N.exe	MSBuild.exe
PID 3240 wrote to memory of 1060	3240	b71836316f2222c3651e8a99cf6432a0N.exe	MSBuild.exe
PID 3240 wrote to memory of 1060	3240	b71836316f2222c3651e8a99cf6432a0N.exe	MSBuild.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3536
- C:\Users\Admin\AppData\Local\Temp\b71836316f2222c3651e8a99cf6432a0N.exe
  "C:\Users\Admin\AppData\Local\Temp\b71836316f2222c3651e8a99cf6432a0N.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3240
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  PID:1060

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/1060-1094-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1060-1097-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/3240-0-0x0000000074D8E000-0x0000000074D8F000-memory.dmp

Filesize
4KB

Download
memory/3240-1-0x00000000003E0000-0x0000000000534000-memory.dmp

Filesize
1.3MB

Download
memory/3240-2-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/3240-3-0x0000000004EB0000-0x0000000004FCA000-memory.dmp

Filesize
1.1MB

Download
memory/3240-4-0x0000000005140000-0x000000000525A000-memory.dmp

Filesize
1.1MB

Download
memory/3240-18-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-20-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-62-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-68-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-66-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-64-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-60-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-58-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-56-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-54-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-52-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-50-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-48-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-46-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-44-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-42-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-40-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-38-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-36-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-34-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-32-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-30-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-28-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-24-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-22-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-16-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-14-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-12-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-8-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-6-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-26-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-5-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-11-0x0000000005140000-0x0000000005254000-memory.dmp

Filesize
1.1MB

Download
memory/3240-1077-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/3240-1078-0x0000000005320000-0x00000000053B6000-memory.dmp

Filesize
600KB

Download
memory/3240-1079-0x00000000053C0000-0x000000000540C000-memory.dmp

Filesize
304KB

Download
memory/3240-1083-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/3240-1084-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/3240-1085-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/3240-1086-0x0000000074D8E000-0x0000000074D8F000-memory.dmp

Filesize
4KB

Download
memory/3240-1087-0x0000000005D50000-0x00000000062F4000-memory.dmp

Filesize
5.6MB

Download
memory/3240-1088-0x0000000005490000-0x00000000054E4000-memory.dmp

Filesize
336KB

Download
memory/3240-1096-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download