purelogstealer | a88eb9233151e36f765a78f19958631c9d161d88d1b5b9ebf2391450bdce7d9d

Analysis

max time kernel
138s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
27-08-2024 06:38

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General

Target

64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe
Size

924KB
MD5

de64bb0f39113e48a8499d3401461cf8
SHA1

8d78c2d4701e4596e87e3f09adde214a2a2033e8
SHA256

64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a
SHA512

35b7cdcfb866dcdc79be34066a9ad5a8058b80e68925aeb23708606149841022de17e9d205389c13803c01e356174a2f657773df7d53f889e4e1fc1d68074179
SSDEEP

24576:NAHFp2K15zXnjfQb6+jFb5RIAJTOcA4gnPdCPPd7wm:WHf15zM5JbtA4wPdCnd75

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 2 IoCs

resource	yara_rule
behavioral2/memory/3656-1-0x0000000000930000-0x0000000000A1E000-memory.dmp	family_purelog_stealer
behavioral2/files/0x00070000000234bb-1098.dat	family_purelog_stealer

Suspicious use of NtCreateUserProcessOtherParentProcess 3 IoCs

description	pid	Process	procid_target
PID 3656 created 3420	3656	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	56
PID 2052 created 3420	2052	kdwspet.exe	56
PID 1908 created 3420	1908	kdwspet.exe	56

Executes dropped EXE 4 IoCs

pid	Process
2052	kdwspet.exe
668	kdwspet.exe
1908	kdwspet.exe
4332	kdwspet.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\afasdfga = "C:\\Users\\Admin\\AppData\\Roaming\\afasdfga.exe"	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3656 set thread context of 1784	3656	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	94
PID 2052 set thread context of 668	2052	kdwspet.exe	100
PID 1908 set thread context of 4332	1908	kdwspet.exe	111

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\Test Task17.job	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	kdwspet.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kdwspet.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kdwspet.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3656	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe
2052	kdwspet.exe
1908	kdwspet.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	3656	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe
Token: SeDebugPrivilege	3656	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe
Token: SeDebugPrivilege	2052	kdwspet.exe
Token: SeDebugPrivilege	2052	kdwspet.exe
Token: SeDebugPrivilege	1908	kdwspet.exe
Token: SeDebugPrivilege	1908	kdwspet.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3656 wrote to memory of 1784	3656	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	94
PID 3656 wrote to memory of 1784	3656	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	94
PID 3656 wrote to memory of 1784	3656	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	94
PID 3656 wrote to memory of 1784	3656	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	94
PID 3656 wrote to memory of 1784	3656	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	94
PID 3656 wrote to memory of 1784	3656	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	94
PID 3656 wrote to memory of 1784	3656	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	94
PID 3656 wrote to memory of 1784	3656	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	94
PID 2052 wrote to memory of 668	2052	kdwspet.exe	100
PID 2052 wrote to memory of 668	2052	kdwspet.exe	100
PID 2052 wrote to memory of 668	2052	kdwspet.exe	100
PID 2052 wrote to memory of 668	2052	kdwspet.exe	100
PID 2052 wrote to memory of 668	2052	kdwspet.exe	100
PID 2052 wrote to memory of 668	2052	kdwspet.exe	100
PID 2052 wrote to memory of 668	2052	kdwspet.exe	100
PID 2052 wrote to memory of 668	2052	kdwspet.exe	100
PID 1908 wrote to memory of 4332	1908	kdwspet.exe	111
PID 1908 wrote to memory of 4332	1908	kdwspet.exe	111
PID 1908 wrote to memory of 4332	1908	kdwspet.exe	111
PID 1908 wrote to memory of 4332	1908	kdwspet.exe	111
PID 1908 wrote to memory of 4332	1908	kdwspet.exe	111
PID 1908 wrote to memory of 4332	1908	kdwspet.exe	111
PID 1908 wrote to memory of 4332	1908	kdwspet.exe	111
PID 1908 wrote to memory of 4332	1908	kdwspet.exe	111

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3420
- C:\Users\Admin\AppData\Local\Temp\64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe
  "C:\Users\Admin\AppData\Local\Temp\64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.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:3656
- C:\Users\Admin\AppData\Local\Temp\64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe
  "C:\Users\Admin\AppData\Local\Temp\64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe"
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:1784
- C:\ProgramData\hdiubfd\kdwspet.exe
  "C:\ProgramData\hdiubfd\kdwspet.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:668
- C:\ProgramData\hdiubfd\kdwspet.exe
  "C:\ProgramData\hdiubfd\kdwspet.exe"
  2⤵
  - Executes dropped EXE
  PID:4332

C:\ProgramData\hdiubfd\kdwspet.exe
C:\ProgramData\hdiubfd\kdwspet.exe
1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2052

C:\ProgramData\hdiubfd\kdwspet.exe
C:\ProgramData\hdiubfd\kdwspet.exe
1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1908

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

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Downloads

C:\ProgramData\hdiubfd\kdwspet.exe

Filesize
924KB

MD5
de64bb0f39113e48a8499d3401461cf8

SHA1
8d78c2d4701e4596e87e3f09adde214a2a2033e8

SHA256
64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a

SHA512
35b7cdcfb866dcdc79be34066a9ad5a8058b80e68925aeb23708606149841022de17e9d205389c13803c01e356174a2f657773df7d53f889e4e1fc1d68074179

Download Submit
C:\Windows\Tasks\Test Task17.job

Filesize
242B

MD5
4d95cecbbaceac48aa5af94c66cb40a4

SHA1
da5ab33218eb7563084cb96260e0c920f303e9d2

SHA256
9c2a55b331b9415ee3bc105a8836ec9432b7d61043f87f4369c701a18dc06643

SHA512
046c4ae93f9bca5ae262f30545bf6ac893f928e939e55bb266f4e3d6893cf99f8672f4c60eed9c852e886c4967e63218063340bed81fadd757900010162d4a64

Download Submit
memory/668-2189-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1784-1095-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2052-1101-0x0000000073F40000-0x00000000746F0000-memory.dmp

Filesize
7.7MB

Download
memory/2052-2190-0x0000000073F40000-0x00000000746F0000-memory.dmp

Filesize
7.7MB

Download
memory/2052-2174-0x0000000073F40000-0x00000000746F0000-memory.dmp

Filesize
7.7MB

Download
memory/2052-1100-0x0000000073F4E000-0x0000000073F4F000-memory.dmp

Filesize
4KB

Download
memory/2052-2182-0x0000000073F40000-0x00000000746F0000-memory.dmp

Filesize
7.7MB

Download
memory/2052-2181-0x0000000073F4E000-0x0000000073F4F000-memory.dmp

Filesize
4KB

Download
memory/2052-2179-0x0000000073F40000-0x00000000746F0000-memory.dmp

Filesize
7.7MB

Download
memory/2052-2180-0x0000000073F40000-0x00000000746F0000-memory.dmp

Filesize
7.7MB

Download
memory/2052-2178-0x0000000073F40000-0x00000000746F0000-memory.dmp

Filesize
7.7MB

Download
memory/3656-28-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-6-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-64-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-62-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-60-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-58-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-54-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-52-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-50-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-48-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-46-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-42-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-40-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-38-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-36-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-34-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-32-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-68-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-26-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-22-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-16-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-12-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-44-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-66-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-30-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-5-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-24-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-14-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-10-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-8-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-1077-0x00000000745D0000-0x0000000074D80000-memory.dmp

Filesize
7.7MB

Download
memory/3656-1078-0x0000000005630000-0x0000000005688000-memory.dmp

Filesize
352KB

Download
memory/3656-1079-0x0000000005690000-0x00000000056DC000-memory.dmp

Filesize
304KB

Download
memory/3656-1083-0x00000000745D0000-0x0000000074D80000-memory.dmp

Filesize
7.7MB

Download
memory/3656-1084-0x00000000745D0000-0x0000000074D80000-memory.dmp

Filesize
7.7MB

Download
memory/3656-1085-0x00000000745D0000-0x0000000074D80000-memory.dmp

Filesize
7.7MB

Download
memory/3656-56-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-19-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-20-0x0000000005460000-0x0000000005538000-memory.dmp

Filesize
864KB

Download
memory/3656-4-0x0000000005460000-0x000000000553E000-memory.dmp

Filesize
888KB

Download
memory/3656-3-0x0000000005310000-0x00000000053EC000-memory.dmp

Filesize
880KB

Download
memory/3656-2-0x00000000745D0000-0x0000000074D80000-memory.dmp

Filesize
7.7MB

Download
memory/3656-1-0x0000000000930000-0x0000000000A1E000-memory.dmp

Filesize
952KB

Download
memory/3656-0-0x00000000745DE000-0x00000000745DF000-memory.dmp

Filesize
4KB

Download
memory/3656-1086-0x00000000745DE000-0x00000000745DF000-memory.dmp

Filesize
4KB

Download
memory/3656-1087-0x0000000006030000-0x00000000065D4000-memory.dmp

Filesize
5.6MB

Download
memory/3656-1088-0x0000000005770000-0x00000000057C4000-memory.dmp

Filesize
336KB

Download
memory/3656-1094-0x00000000745D0000-0x0000000074D80000-memory.dmp

Filesize
7.7MB

Download