purelogstealer | 6f03a4ec146aebb2d8031244e1c206131dc7852d9cac9937cfa62d7b27ebbf28

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
14-06-2024 09:29

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General

Target

Gqgsm.exe
Size

171KB
MD5

c6cd0f62d86d87344a7d7483d82ac6d3
SHA1

23332a2dc618d48d98218d3b3d67bc128e9d0f3d
SHA256

6f03a4ec146aebb2d8031244e1c206131dc7852d9cac9937cfa62d7b27ebbf28
SHA512

fed34015b4059b82df3fe6a59c2b168d60a1325c0253ecb53d38fb85459cb0d1aec0c9b2c30081d94ad6e12d9fc9298e258dda6fa1fd95a7fbc6d13a59a45031
SSDEEP

3072:OYf8KDcsaEoJJlIZA0ZHl/itzwDOXVcdhyzTazMn:OYf8KIsaEoJ7IS0F0GOXVcryz2zM

Score

10^/10

purelogstealer collection persistence spyware 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/2156-1-0x00000000009B0000-0x00000000009E2000-memory.dmp	family_purelog_stealer

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

Accesses Microsoft Outlook profiles 1 TTPs 35 IoCs

collection

Email Collection

T1114

Processes:

Gqgsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Gqgsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Gqgsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Gqgsm.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Gqgsm.exe
Key queried	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Gqgsm.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Gqgsm.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Gqgsm.exe
Key queried	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Gqgsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Gqgsm.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Gqgsm.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Gqgsm.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	Gqgsm.exe
Key queried	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Gqgsm.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	Gqgsm.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Gqgsm.exe
Key queried	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Gqgsm.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	Gqgsm.exe
Key queried	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	Gqgsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Gqgsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Gqgsm.exe
Key queried	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Gqgsm.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Gqgsm.exe
Key queried	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	Gqgsm.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	Gqgsm.exe
Key queried	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	Gqgsm.exe
Key queried	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Gqgsm.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Gqgsm.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Gqgsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Gqgsm.exe
Key queried	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Gqgsm.exe
Key queried	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	Gqgsm.exe
Key queried	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Gqgsm.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Gqgsm.exe
Key queried	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Gqgsm.exe
Key queried	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Gqgsm.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Gqgsm.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\Ebsuqfzk = "C:\\Users\\Admin\\AppData\\Roaming\\Ebsuqfzk.exe"	Gqgsm.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Gqgsm.exe

description pid process target process

PID 2156 set thread context of 2532 2156 Gqgsm.exe Gqgsm.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

Gqgsm.exe

pid process

2532 Gqgsm.exe
2532 Gqgsm.exe
2532 Gqgsm.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Gqgsm.exeGqgsm.exe

description pid process

Token: SeDebugPrivilege 2156 Gqgsm.exe
Token: SeDebugPrivilege 2156 Gqgsm.exe
Token: SeDebugPrivilege 2532 Gqgsm.exe

description	pid	process	target process
PID 2156 set thread context of 2532	2156	Gqgsm.exe	Gqgsm.exe

pid	process
2532	Gqgsm.exe
2532	Gqgsm.exe
2532	Gqgsm.exe

description	pid	process
Token: SeDebugPrivilege	2156	Gqgsm.exe
Token: SeDebugPrivilege	2156	Gqgsm.exe
Token: SeDebugPrivilege	2532	Gqgsm.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

Gqgsm.exe

description	pid	process	target process
PID 2156 wrote to memory of 2532	2156	Gqgsm.exe	Gqgsm.exe
PID 2156 wrote to memory of 2532	2156	Gqgsm.exe	Gqgsm.exe
PID 2156 wrote to memory of 2532	2156	Gqgsm.exe	Gqgsm.exe
PID 2156 wrote to memory of 2532	2156	Gqgsm.exe	Gqgsm.exe
PID 2156 wrote to memory of 2532	2156	Gqgsm.exe	Gqgsm.exe
PID 2156 wrote to memory of 2532	2156	Gqgsm.exe	Gqgsm.exe
PID 2156 wrote to memory of 2532	2156	Gqgsm.exe	Gqgsm.exe
PID 2156 wrote to memory of 2532	2156	Gqgsm.exe	Gqgsm.exe
PID 2156 wrote to memory of 2532	2156	Gqgsm.exe	Gqgsm.exe

outlook_office_path 1 IoCs

Processes:

Gqgsm.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Gqgsm.exe

outlook_win_path 1 IoCs

Processes:

Gqgsm.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Gqgsm.exe

C:\Users\Admin\AppData\Local\Temp\Gqgsm.exe
"C:\Users\Admin\AppData\Local\Temp\Gqgsm.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2156
- C:\Users\Admin\AppData\Local\Temp\Gqgsm.exe
  "C:\Users\Admin\AppData\Local\Temp\Gqgsm.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2532

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

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Azkehgukad.tmpdb

Filesize
148KB

MD5
90a1d4b55edf36fa8b4cc6974ed7d4c4

SHA1
aba1b8d0e05421e7df5982899f626211c3c4b5c1

SHA256
7cf3e9e8619904e72ea6608cc43e9b6c9f8aa2af02476f60c2b3daf33075981c

SHA512
ea0838be754e1258c230111900c5937d2b0788f90bbf7c5f82b2ceda7868e50afb86c301f313267eaa912778da45755560b5434885521bf915967a7863922ae2

Download Submit
memory/2156-0-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

Filesize
4KB

Download
memory/2156-1-0x00000000009B0000-0x00000000009E2000-memory.dmp

Filesize
200KB

Download
memory/2156-2-0x00000000003A0000-0x00000000003AA000-memory.dmp

Filesize
40KB

Download
memory/2156-3-0x0000000074C90000-0x000000007537E000-memory.dmp

Filesize
6.9MB

Download
memory/2156-4-0x0000000008890000-0x0000000008B7C000-memory.dmp

Filesize
2.9MB

Download
memory/2156-5-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-6-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-8-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-10-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-20-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-24-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-60-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-66-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-12-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-4892-0x0000000004BD0000-0x0000000004C1C000-memory.dmp

Filesize
304KB

Download
memory/2156-4891-0x0000000006150000-0x0000000006278000-memory.dmp

Filesize
1.2MB

Download
memory/2156-68-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-64-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-62-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-58-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-56-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-54-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-52-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-50-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-48-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-46-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-44-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-42-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-40-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-38-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-36-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-34-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-32-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-30-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-28-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-26-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-22-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-18-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-16-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-14-0x0000000008890000-0x0000000008B76000-memory.dmp

Filesize
2.9MB

Download
memory/2156-4893-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

Filesize
4KB

Download
memory/2156-4894-0x0000000074C90000-0x000000007537E000-memory.dmp

Filesize
6.9MB

Download
memory/2156-4895-0x00000000050D0000-0x0000000005124000-memory.dmp

Filesize
336KB

Download
memory/2156-4918-0x0000000074C90000-0x000000007537E000-memory.dmp

Filesize
6.9MB

Download
memory/2532-4919-0x00000000048F0000-0x0000000004A06000-memory.dmp

Filesize
1.1MB

Download
memory/2532-4920-0x0000000074C90000-0x000000007537E000-memory.dmp

Filesize
6.9MB

Download
memory/2532-4917-0x0000000000080000-0x0000000000158000-memory.dmp

Filesize
864KB

Download
memory/2532-7257-0x0000000004C40000-0x0000000004CDE000-memory.dmp

Filesize
632KB

Download
memory/2532-7258-0x0000000000970000-0x000000000099C000-memory.dmp

Filesize
176KB

Download
memory/2532-7259-0x0000000005A60000-0x0000000005ADA000-memory.dmp

Filesize
488KB

Download
memory/2532-7289-0x0000000074C90000-0x000000007537E000-memory.dmp

Filesize
6.9MB

Download