purelogstealer | a9cbd4871bff21deb079925733bf4b5318fda799a5e3cc47c63b080015688890

Analysis

max time kernel
31s
max time network
16s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
26-08-2024 18:37

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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 1 IoCs

resource	yara_rule
behavioral1/memory/2556-1-0x00000000002F0000-0x00000000003DE000-memory.dmp	family_purelog_stealer

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-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Run\afasdfga = "C:\\Users\\Admin\\AppData\\Roaming\\afasdfga.exe"	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5964	2556	WerFault.exe	28

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2556	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2556	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe
Token: SeDebugPrivilege	2556	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2556 wrote to memory of 5964	2556	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	29
PID 2556 wrote to memory of 5964	2556	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	29
PID 2556 wrote to memory of 5964	2556	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	29
PID 2556 wrote to memory of 5964	2556	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	29

C:\Users\Admin\AppData\Local\Temp\64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe
"C:\Users\Admin\AppData\Local\Temp\64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2556
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2556 -s 632
  2⤵
  - Program crash
  PID:5964

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

Replay Monitor

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Downloads

memory/2556-0-0x0000000074D9E000-0x0000000074D9F000-memory.dmp

Filesize
4KB

Download
memory/2556-1-0x00000000002F0000-0x00000000003DE000-memory.dmp

Filesize
952KB

Download
memory/2556-2-0x0000000074D90000-0x000000007547E000-memory.dmp

Filesize
6.9MB

Download
memory/2556-3-0x0000000001FB0000-0x000000000208C000-memory.dmp

Filesize
880KB

Download
memory/2556-4-0x0000000004800000-0x00000000048DE000-memory.dmp

Filesize
888KB

Download
memory/2556-7-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-5-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-26-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-24-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-22-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-20-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-18-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-16-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-14-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-12-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-10-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-8-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-30-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-28-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-32-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-34-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-38-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-36-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-44-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-42-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-46-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-40-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-58-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-56-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-68-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-66-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-64-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-62-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-60-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-54-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-52-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-50-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-48-0x0000000004800000-0x00000000048D8000-memory.dmp

Filesize
864KB

Download
memory/2556-1077-0x0000000074D90000-0x000000007547E000-memory.dmp

Filesize
6.9MB

Download
memory/2556-1078-0x0000000002200000-0x0000000002258000-memory.dmp

Filesize
352KB

Download
memory/2556-1079-0x0000000004C10000-0x0000000004C5C000-memory.dmp

Filesize
304KB

Download
memory/2556-1080-0x0000000074D9E000-0x0000000074D9F000-memory.dmp

Filesize
4KB

Download
memory/2556-1081-0x0000000074D90000-0x000000007547E000-memory.dmp

Filesize
6.9MB

Download
memory/2556-1082-0x0000000004D70000-0x0000000004DC4000-memory.dmp

Filesize
336KB

Download