purelogstealer | 9daffaea889ac9a0a94e711c815ef8f8d17878c00dc802033300e46f35ccbc29

Analysis

max time kernel
99s
max time network
90s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
06/08/2024, 18:33

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General

Target

d8506a1a17c1b7452fc9e94ce5568900N.exe
Size

5.3MB
MD5

d8506a1a17c1b7452fc9e94ce5568900
SHA1

d1d281538ddd3cc45a6bb29380dc1d7330e4bd0d
SHA256

9daffaea889ac9a0a94e711c815ef8f8d17878c00dc802033300e46f35ccbc29
SHA512

0b8d671333d70f341cec6eeb8cfad1169251980305b19b31f96345f8c797fd0dd97d4b7fd40ad28412e1340829a2c82f253577a26403ea567cd2cb1dd6ba0e9b
SSDEEP

98304:Q3QwuwsuAyobBzVlwVNwo7MhtCzLY8QcTEcX/ssSR/UoUSAKBasi930z:kQ1Hj1RlwPwo7MhtCA8QBskVMoU0Ba72

Score

10^/10

purelogstealer credential_access discovery stealer

Malware Config

Signatures

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

PureLog Stealer payload 1 IoCs

resource	yara_rule
behavioral1/memory/2744-1-0x0000000000B10000-0x000000000105C000-memory.dmp	family_purelog_stealer

Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2744 set thread context of 3308	2744	d8506a1a17c1b7452fc9e94ce5568900N.exe	30

System Location Discovery: System Language Discovery 1 TTPs 4 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	d8506a1a17c1b7452fc9e94ce5568900N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AppLaunch.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	AppLaunch.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	AppLaunch.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3940	timeout.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3308	AppLaunch.exe
3308	AppLaunch.exe
3308	AppLaunch.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2744	d8506a1a17c1b7452fc9e94ce5568900N.exe
Token: SeDebugPrivilege	2744	d8506a1a17c1b7452fc9e94ce5568900N.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2744 wrote to memory of 3308	2744	d8506a1a17c1b7452fc9e94ce5568900N.exe	30
PID 2744 wrote to memory of 3308	2744	d8506a1a17c1b7452fc9e94ce5568900N.exe	30
PID 2744 wrote to memory of 3308	2744	d8506a1a17c1b7452fc9e94ce5568900N.exe	30
PID 2744 wrote to memory of 3308	2744	d8506a1a17c1b7452fc9e94ce5568900N.exe	30
PID 2744 wrote to memory of 3308	2744	d8506a1a17c1b7452fc9e94ce5568900N.exe	30
PID 2744 wrote to memory of 3308	2744	d8506a1a17c1b7452fc9e94ce5568900N.exe	30
PID 2744 wrote to memory of 3308	2744	d8506a1a17c1b7452fc9e94ce5568900N.exe	30
PID 2744 wrote to memory of 3308	2744	d8506a1a17c1b7452fc9e94ce5568900N.exe	30
PID 2744 wrote to memory of 3308	2744	d8506a1a17c1b7452fc9e94ce5568900N.exe	30
PID 2744 wrote to memory of 3308	2744	d8506a1a17c1b7452fc9e94ce5568900N.exe	30
PID 2744 wrote to memory of 3308	2744	d8506a1a17c1b7452fc9e94ce5568900N.exe	30
PID 2744 wrote to memory of 3308	2744	d8506a1a17c1b7452fc9e94ce5568900N.exe	30
PID 2744 wrote to memory of 3308	2744	d8506a1a17c1b7452fc9e94ce5568900N.exe	30
PID 3308 wrote to memory of 3912	3308	AppLaunch.exe	33
PID 3308 wrote to memory of 3912	3308	AppLaunch.exe	33
PID 3308 wrote to memory of 3912	3308	AppLaunch.exe	33
PID 3308 wrote to memory of 3912	3308	AppLaunch.exe	33
PID 3308 wrote to memory of 3912	3308	AppLaunch.exe	33
PID 3308 wrote to memory of 3912	3308	AppLaunch.exe	33
PID 3308 wrote to memory of 3912	3308	AppLaunch.exe	33
PID 3912 wrote to memory of 3940	3912	cmd.exe	35
PID 3912 wrote to memory of 3940	3912	cmd.exe	35
PID 3912 wrote to memory of 3940	3912	cmd.exe	35
PID 3912 wrote to memory of 3940	3912	cmd.exe	35
PID 3912 wrote to memory of 3940	3912	cmd.exe	35
PID 3912 wrote to memory of 3940	3912	cmd.exe	35
PID 3912 wrote to memory of 3940	3912	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\d8506a1a17c1b7452fc9e94ce5568900N.exe
"C:\Users\Admin\AppData\Local\Temp\d8506a1a17c1b7452fc9e94ce5568900N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2744
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3308
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe" & rd /s /q "C:\ProgramData\DGDBFBFCBFBK" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3912
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:3940

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Cab2EB0.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar2EC3.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
memory/2744-38-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-28-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-4-0x00000000068F0000-0x0000000006B22000-memory.dmp

Filesize
2.2MB

Download
memory/2744-5-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-14-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-12-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-10-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-9-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-6-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-16-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-18-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-20-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-24-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-46-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-26-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-44-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-30-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-32-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-34-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-36-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-0-0x00000000741FE000-0x00000000741FF000-memory.dmp

Filesize
4KB

Download
memory/2744-40-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-3-0x00000000741F0000-0x00000000748DE000-memory.dmp

Filesize
6.9MB

Download
memory/2744-42-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-22-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-48-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-68-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-66-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-4867-0x00000000741F0000-0x00000000748DE000-memory.dmp

Filesize
6.9MB

Download
memory/2744-64-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-4869-0x0000000005170000-0x00000000051BC000-memory.dmp

Filesize
304KB

Download
memory/2744-4868-0x0000000005090000-0x0000000005100000-memory.dmp

Filesize
448KB

Download
memory/2744-62-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-60-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-58-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-56-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-54-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-52-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-50-0x00000000068F0000-0x0000000006B1D000-memory.dmp

Filesize
2.2MB

Download
memory/2744-4870-0x00000000741FE000-0x00000000741FF000-memory.dmp

Filesize
4KB

Download
memory/2744-4871-0x00000000741F0000-0x00000000748DE000-memory.dmp

Filesize
6.9MB

Download
memory/2744-4872-0x0000000005890000-0x00000000058E4000-memory.dmp

Filesize
336KB

Download
memory/2744-4889-0x00000000741F0000-0x00000000748DE000-memory.dmp

Filesize
6.9MB

Download
memory/2744-2-0x0000000000310000-0x0000000000318000-memory.dmp

Filesize
32KB

Download
memory/2744-1-0x0000000000B10000-0x000000000105C000-memory.dmp

Filesize
5.3MB

Download