purelogstealer | a9cbd4871bff21deb079925733bf4b5318fda799a5e3cc47c63b080015688890

Analysis

max time kernel
146s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
26-08-2024 17:07

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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/3140-1-0x0000000000540000-0x000000000062E000-memory.dmp	family_purelog_stealer
behavioral2/files/0x0007000000023482-1099.dat	family_purelog_stealer

Suspicious use of NtCreateUserProcessOtherParentProcess 3 IoCs

description	pid	Process	procid_target
PID 3140 created 3444	3140	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	55
PID 2088 created 3444	2088	xsow.exe	55
PID 2120 created 3444	2120	xsow.exe	55

Executes dropped EXE 4 IoCs

pid	Process
2088	xsow.exe
2760	xsow.exe
2120	xsow.exe
4840	xsow.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-1-5-21-786284298-625481688-3210388970-1000\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 3140 set thread context of 4532	3140	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	94
PID 2088 set thread context of 2760	2088	xsow.exe	100
PID 2120 set thread context of 4840	2120	xsow.exe	112

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 6 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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xsow.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xsow.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xsow.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xsow.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3140	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe
2088	xsow.exe
2120	xsow.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	3140	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe
Token: SeDebugPrivilege	3140	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe
Token: SeDebugPrivilege	2088	xsow.exe
Token: SeDebugPrivilege	2088	xsow.exe
Token: SeDebugPrivilege	2120	xsow.exe
Token: SeDebugPrivilege	2120	xsow.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3140 wrote to memory of 4532	3140	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	94
PID 3140 wrote to memory of 4532	3140	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	94
PID 3140 wrote to memory of 4532	3140	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	94
PID 3140 wrote to memory of 4532	3140	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	94
PID 3140 wrote to memory of 4532	3140	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	94
PID 3140 wrote to memory of 4532	3140	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	94
PID 3140 wrote to memory of 4532	3140	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	94
PID 3140 wrote to memory of 4532	3140	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	94
PID 2088 wrote to memory of 2760	2088	xsow.exe	100
PID 2088 wrote to memory of 2760	2088	xsow.exe	100
PID 2088 wrote to memory of 2760	2088	xsow.exe	100
PID 2088 wrote to memory of 2760	2088	xsow.exe	100
PID 2088 wrote to memory of 2760	2088	xsow.exe	100
PID 2088 wrote to memory of 2760	2088	xsow.exe	100
PID 2088 wrote to memory of 2760	2088	xsow.exe	100
PID 2088 wrote to memory of 2760	2088	xsow.exe	100
PID 2120 wrote to memory of 4840	2120	xsow.exe	112
PID 2120 wrote to memory of 4840	2120	xsow.exe	112
PID 2120 wrote to memory of 4840	2120	xsow.exe	112
PID 2120 wrote to memory of 4840	2120	xsow.exe	112
PID 2120 wrote to memory of 4840	2120	xsow.exe	112
PID 2120 wrote to memory of 4840	2120	xsow.exe	112
PID 2120 wrote to memory of 4840	2120	xsow.exe	112
PID 2120 wrote to memory of 4840	2120	xsow.exe	112

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3444
- 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:3140
- 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:4532
- C:\ProgramData\cxvvx\xsow.exe
  "C:\ProgramData\cxvvx\xsow.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2760
- C:\ProgramData\cxvvx\xsow.exe
  "C:\ProgramData\cxvvx\xsow.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4840

C:\ProgramData\cxvvx\xsow.exe
C:\ProgramData\cxvvx\xsow.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:2088

C:\ProgramData\cxvvx\xsow.exe
C:\ProgramData\cxvvx\xsow.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:2120

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\cxvvx\xsow.exe

Filesize
924KB

MD5
de64bb0f39113e48a8499d3401461cf8

SHA1
8d78c2d4701e4596e87e3f09adde214a2a2033e8

SHA256
64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a

SHA512
35b7cdcfb866dcdc79be34066a9ad5a8058b80e68925aeb23708606149841022de17e9d205389c13803c01e356174a2f657773df7d53f889e4e1fc1d68074179

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

Filesize
232B

MD5
c0b05e832f215c0244a4f631755e1190

SHA1
00b57220a3e6ece88303fc1c223ed4fff3526f79

SHA256
ff582f0d565c5fbff87657e1b1c71c8a2fdc6b37be66bbeed2af559908639b45

SHA512
b0da395eb3c69ba312d6d8b270c997835fa775a8e70a0e32816533c1c2a2b7b4a20ab09f837d971ccf747b91089ac6447a0a2238c98fa03c707f23997704b2f5

Download Submit
memory/2088-1101-0x000000007496E000-0x000000007496F000-memory.dmp

Filesize
4KB

Download
memory/2088-1102-0x0000000074960000-0x0000000075110000-memory.dmp

Filesize
7.7MB

Download
memory/2088-2175-0x0000000074960000-0x0000000075110000-memory.dmp

Filesize
7.7MB

Download
memory/2088-2190-0x0000000074960000-0x0000000075110000-memory.dmp

Filesize
7.7MB

Download
memory/2088-2182-0x0000000074960000-0x0000000075110000-memory.dmp

Filesize
7.7MB

Download
memory/2088-2181-0x000000007496E000-0x000000007496F000-memory.dmp

Filesize
4KB

Download
memory/2088-2180-0x0000000074960000-0x0000000075110000-memory.dmp

Filesize
7.7MB

Download
memory/2088-2179-0x0000000074960000-0x0000000075110000-memory.dmp

Filesize
7.7MB

Download
memory/2760-2189-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3140-14-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-42-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-64-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-62-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-60-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-58-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-56-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-54-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-48-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-46-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-40-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-34-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-32-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-30-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-26-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-22-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-20-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-18-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-16-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-68-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-12-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-10-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-5-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-50-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-44-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-66-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-38-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-36-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-29-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-24-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-8-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-1077-0x0000000074FF0000-0x00000000757A0000-memory.dmp

Filesize
7.7MB

Download
memory/3140-1078-0x0000000005250000-0x00000000052A8000-memory.dmp

Filesize
352KB

Download
memory/3140-1079-0x00000000052B0000-0x00000000052FC000-memory.dmp

Filesize
304KB

Download
memory/3140-1083-0x0000000074FF0000-0x00000000757A0000-memory.dmp

Filesize
7.7MB

Download
memory/3140-1084-0x0000000074FF0000-0x00000000757A0000-memory.dmp

Filesize
7.7MB

Download
memory/3140-1085-0x0000000074FF0000-0x00000000757A0000-memory.dmp

Filesize
7.7MB

Download
memory/3140-1086-0x0000000074FFE000-0x0000000074FFF000-memory.dmp

Filesize
4KB

Download
memory/3140-52-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-6-0x00000000050F0000-0x00000000051C8000-memory.dmp

Filesize
864KB

Download
memory/3140-4-0x00000000050F0000-0x00000000051CE000-memory.dmp

Filesize
888KB

Download
memory/3140-3-0x0000000004FA0000-0x000000000507C000-memory.dmp

Filesize
880KB

Download
memory/3140-2-0x0000000074FF0000-0x00000000757A0000-memory.dmp

Filesize
7.7MB

Download
memory/3140-1-0x0000000000540000-0x000000000062E000-memory.dmp

Filesize
952KB

Download
memory/3140-0-0x0000000074FFE000-0x0000000074FFF000-memory.dmp

Filesize
4KB

Download
memory/3140-1087-0x0000000074FF0000-0x00000000757A0000-memory.dmp

Filesize
7.7MB

Download
memory/3140-1088-0x0000000005C50000-0x00000000061F4000-memory.dmp

Filesize
5.6MB

Download
memory/3140-1089-0x0000000005390000-0x00000000053E4000-memory.dmp

Filesize
336KB

Download
memory/3140-1095-0x0000000074FF0000-0x00000000757A0000-memory.dmp

Filesize
7.7MB

Download
memory/4532-1096-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download