purelogstealer | 2a196a394b6f73d6e9dafe6205c6507802d50d21de2d715ff512c2c2e4b6531c

Analysis

max time kernel
111s
max time network
107s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25-08-2024 05:27

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General

Target

b327cefae6707c649804ba89518e9690N.exe
Size

273KB
MD5

b327cefae6707c649804ba89518e9690
SHA1

0a9f7bd8b51d61288cf253a186693f38299bbfb5
SHA256

2a196a394b6f73d6e9dafe6205c6507802d50d21de2d715ff512c2c2e4b6531c
SHA512

670a1a0db9bcac41e3f0d16992a920232d22e69dbadecffc542990550557ec72f0d2100790fdda3c1645bee339f6a0ce79ae0a3fa5ef590eb882279c5dd815a8
SSDEEP

3072:MsC1JX9HSPBKYyuXu8Hzj5v5fOj/1tleVKCKxLD8O:fC/X9yPBFpu8TyxeVKdtD8

Score

10^/10

purelogstealer credential_access discovery persistence spyware stealer

Malware Config

Signatures

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

PureLog Stealer payload 1 IoCs

resource	yara_rule
behavioral2/memory/872-1-0x00000000008E0000-0x0000000000926000-memory.dmp	family_purelog_stealer

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
Downloads MZ/PE file

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	b327cefae6707c649804ba89518e9690N.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	VC_redistx64.exe

Executes dropped EXE 3 IoCs

pid	Process
4328	gWsmPty.exe
404	VC_redistx64.exe
3620	VIZSPLOIT.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

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-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\My Program = "C:\\ProgramData\\MyHiddenFolder\\VC_redistx64.exe"	VC_redistx64.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 11 IoCs

pid	Process
404	VC_redistx64.exe
404	VC_redistx64.exe
404	VC_redistx64.exe
404	VC_redistx64.exe
404	VC_redistx64.exe
404	VC_redistx64.exe
404	VC_redistx64.exe
404	VC_redistx64.exe
404	VC_redistx64.exe
404	VC_redistx64.exe
404	VC_redistx64.exe

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 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	b327cefae6707c649804ba89518e9690N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	VC_redistx64.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe
872	b327cefae6707c649804ba89518e9690N.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	872	b327cefae6707c649804ba89518e9690N.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
404	VC_redistx64.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 872 wrote to memory of 4328	872	b327cefae6707c649804ba89518e9690N.exe	94
PID 872 wrote to memory of 4328	872	b327cefae6707c649804ba89518e9690N.exe	94
PID 872 wrote to memory of 404	872	b327cefae6707c649804ba89518e9690N.exe	95
PID 872 wrote to memory of 404	872	b327cefae6707c649804ba89518e9690N.exe	95
PID 872 wrote to memory of 404	872	b327cefae6707c649804ba89518e9690N.exe	95
PID 872 wrote to memory of 3620	872	b327cefae6707c649804ba89518e9690N.exe	96
PID 872 wrote to memory of 3620	872	b327cefae6707c649804ba89518e9690N.exe	96
PID 3620 wrote to memory of 3632	3620	VIZSPLOIT.exe	98
PID 3620 wrote to memory of 3632	3620	VIZSPLOIT.exe	98
PID 3632 wrote to memory of 4860	3632	cmd.exe	99
PID 3632 wrote to memory of 4860	3632	cmd.exe	99
PID 3620 wrote to memory of 4752	3620	VIZSPLOIT.exe	100
PID 3620 wrote to memory of 4752	3620	VIZSPLOIT.exe	100
PID 4752 wrote to memory of 3940	4752	cmd.exe	101
PID 4752 wrote to memory of 3940	4752	cmd.exe	101
PID 3620 wrote to memory of 1220	3620	VIZSPLOIT.exe	102
PID 3620 wrote to memory of 1220	3620	VIZSPLOIT.exe	102

C:\Users\Admin\AppData\Local\Temp\b327cefae6707c649804ba89518e9690N.exe
"C:\Users\Admin\AppData\Local\Temp\b327cefae6707c649804ba89518e9690N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:872
- C:\Users\Admin\AppData\Roaming\gWsmPty.exe
  "C:\Users\Admin\AppData\Roaming\gWsmPty.exe"
  2⤵
  - Executes dropped EXE
  PID:4328
- C:\Users\Admin\AppData\Roaming\VC_redistx64.exe
  "C:\Users\Admin\AppData\Roaming\VC_redistx64.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:404
- C:\Users\Admin\AppData\Roaming\VIZSPLOIT.exe
  "C:\Users\Admin\AppData\Roaming\VIZSPLOIT.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:3620
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c mode con cols=85
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3632
  - - C:\Windows\system32\mode.com
      mode con cols=85
      4⤵
      PID:4860
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c mode con lines=25
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4752
  - - C:\Windows\system32\mode.com
      mode con lines=25
      4⤵
      PID:3940
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c TITLE Visploit
    3⤵
    PID:1220

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

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

Browser Information Discovery

T1217

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\VC_redistx64.exe

Filesize
2.6MB

MD5
dab13157795e19d8fe050f65ce49401d

SHA1
ecb6f0a864fd92fb7c423d882f9a6ea703096318

SHA256
d8b4ce77f87bfe0b958f01ea30f48cf53e6ff51b425a57abc4f83a71d47f58fc

SHA512
5cdb82bf347dbdae3c8e3f376ad18fb48509af3da91e8d18876ee7adb9db9fa9d2476060bf5de1294d44e86d477486db9efa045bd45a86a0e6739d6cfa9cca89

Download Submit
C:\Users\Admin\AppData\Roaming\VIZSPLOIT.exe

Filesize
194KB

MD5
1f29ee3673fc717fcb8f6007c3f840cd

SHA1
5efd71aa728a1699a890e7acbff5f38402b56b4e

SHA256
5d8159897acac6a7349dad41208004e071e0ad0388142d81bb4cc72ef459a500

SHA512
c1b79a9edfbf8ef9536c28131a9a800cc911ccfb4a7504675566ce9e9bde69965fa4c7e04902f206dfa63c1bb58071809939c8ca3f8ae5adca79ee7d59cab4c3

Download Submit
C:\Users\Admin\AppData\Roaming\gWsmPty.exe

Filesize
13.1MB

MD5
7f1f6faad0a3366179323f9272ff9770

SHA1
1fabd1cb6b74980183cf5fb59bd6cf65f4a37234

SHA256
9094f28717295369488c86921c6fdfa6e7df38c2915b6811de96212552d66811

SHA512
555b15779737f88bf486b58152c57295d1928aae5befad48a04d08a5d56514e891f81f773651d5233cf11605800671885c7475537df1179a2b7ebd0bb949e74a

Download Submit
memory/404-85-0x0000000000EF0000-0x000000000194D000-memory.dmp

Filesize
10.4MB

Download
memory/404-83-0x0000000000EF0000-0x000000000194D000-memory.dmp

Filesize
10.4MB

Download
memory/404-48-0x0000000000EF0000-0x000000000194D000-memory.dmp

Filesize
10.4MB

Download
memory/404-78-0x0000000000EF0000-0x000000000194D000-memory.dmp

Filesize
10.4MB

Download
memory/404-79-0x0000000000EF0000-0x000000000194D000-memory.dmp

Filesize
10.4MB

Download
memory/404-96-0x0000000000EF0000-0x000000000194D000-memory.dmp

Filesize
10.4MB

Download
memory/404-101-0x0000000000EF0000-0x000000000194D000-memory.dmp

Filesize
10.4MB

Download
memory/404-100-0x0000000000EF0000-0x000000000194D000-memory.dmp

Filesize
10.4MB

Download
memory/404-99-0x0000000000EF0000-0x000000000194D000-memory.dmp

Filesize
10.4MB

Download
memory/404-98-0x0000000000EF0000-0x000000000194D000-memory.dmp

Filesize
10.4MB

Download
memory/404-97-0x0000000000EF0000-0x000000000194D000-memory.dmp

Filesize
10.4MB

Download
memory/872-3-0x0000000005360000-0x000000000536C000-memory.dmp

Filesize
48KB

Download
memory/872-2-0x0000000074790000-0x0000000074F40000-memory.dmp

Filesize
7.7MB

Download
memory/872-4-0x0000000005390000-0x000000000539A000-memory.dmp

Filesize
40KB

Download
memory/872-7-0x00000000088F0000-0x0000000008E94000-memory.dmp

Filesize
5.6MB

Download
memory/872-6-0x0000000074790000-0x0000000074F40000-memory.dmp

Filesize
7.7MB

Download
memory/872-58-0x0000000074790000-0x0000000074F40000-memory.dmp

Filesize
7.7MB

Download
memory/872-0-0x000000007479E000-0x000000007479F000-memory.dmp

Filesize
4KB

Download
memory/872-1-0x00000000008E0000-0x0000000000926000-memory.dmp

Filesize
280KB

Download
memory/872-5-0x000000007479E000-0x000000007479F000-memory.dmp

Filesize
4KB

Download
memory/4328-39-0x0000000140000000-0x0000000140263000-memory.dmp

Filesize
2.4MB

Download
memory/4328-38-0x0000000140000000-0x0000000140263000-memory.dmp

Filesize
2.4MB

Download
memory/4328-76-0x00000000011B0000-0x00000000011B1000-memory.dmp

Filesize
4KB

Download
memory/4328-75-0x0000000000400000-0x000000000113E000-memory.dmp

Filesize
13.2MB

Download
memory/4328-77-0x00000000036D0000-0x00000000038C8000-memory.dmp

Filesize
2.0MB

Download
memory/4328-22-0x0000000140000000-0x0000000140263000-memory.dmp

Filesize
2.4MB

Download
memory/4328-31-0x0000000140000000-0x0000000140263000-memory.dmp

Filesize
2.4MB

Download
memory/4328-80-0x0000000140000000-0x0000000140263000-memory.dmp

Filesize
2.4MB

Download
memory/4328-33-0x0000000140000000-0x0000000140263000-memory.dmp

Filesize
2.4MB

Download
memory/4328-34-0x0000000140000000-0x0000000140263000-memory.dmp

Filesize
2.4MB

Download
memory/4328-86-0x0000000140000000-0x0000000140263000-memory.dmp

Filesize
2.4MB

Download
memory/4328-87-0x0000000140000000-0x0000000140263000-memory.dmp

Filesize
2.4MB

Download
memory/4328-35-0x0000000140000000-0x0000000140263000-memory.dmp

Filesize
2.4MB

Download
memory/4328-36-0x0000000140000000-0x0000000140263000-memory.dmp

Filesize
2.4MB

Download
memory/4328-37-0x0000000140000000-0x0000000140263000-memory.dmp

Filesize
2.4MB

Download
memory/4328-32-0x0000000140000000-0x0000000140263000-memory.dmp

Filesize
2.4MB

Download
memory/4328-20-0x00000000036D0000-0x00000000038C8000-memory.dmp

Filesize
2.0MB

Download
memory/4328-19-0x00000000011B0000-0x00000000011B1000-memory.dmp

Filesize
4KB

Download