purelogstealer | 80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff

Analysis

max time kernel
146s
max time network
152s
platform
windows11-21h2_x64
resource
win11-20240709-en
resource tags

arch:x64arch:x86image:win11-20240709-enlocale:en-usos:windows11-21h2-x64system
submitted
26-07-2024 23:28

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General

Target

80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe
Size

1.0MB
MD5

31759297fa8b62fb1cc998c1a229d14d
SHA1

6e345255abe76ca34768c514bd4558f301c99a78
SHA256

80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff
SHA512

62ca2bc18179da07fcb42298f5aa6dc9f31fa4dbaadb97bcd8892220d5584a23ea7ffd339b301cb1a79cfcdb5de2d12bd780556f760f5c66d2f0bec59b633b16
SSDEEP

24576:6xo4lc+Bbl93QooSZpg0K1iImadvQVqLySyBnjQV3rITD:+b73nbZNK1inq+w3rIX

Score

10^/10

purelogstealer smokeloader backdoor discovery stealer trojan

Malware Config

Signatures

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

PureLog Stealer payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4784-1-0x0000000000DB0000-0x0000000000EBC000-memory.dmp	family_purelog_stealer

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader

Suspicious use of SetThreadContext 1 IoCs

Processes:

80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe

description	pid	process	target process
PID 4784 set thread context of 4740	4784	80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe	80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe

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 5 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

Processes:

timeout.execmd.exetimeout.exe80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.execmd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe

Delays execution with timeout.exe 2 IoCs
evasion

Processes:

timeout.exetimeout.exe

pid process

1344 timeout.exe
1752 timeout.exe

pid	process
1344	timeout.exe
1752	timeout.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe

description	pid	process
Token: SeDebugPrivilege	4784	80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe
Token: SeDebugPrivilege	4784	80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.execmd.execmd.exe

description	pid	process	target process
PID 4784 wrote to memory of 3132	4784	80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe	cmd.exe
PID 4784 wrote to memory of 3132	4784	80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe	cmd.exe
PID 4784 wrote to memory of 3132	4784	80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe	cmd.exe
PID 3132 wrote to memory of 1344	3132	cmd.exe	timeout.exe
PID 3132 wrote to memory of 1344	3132	cmd.exe	timeout.exe
PID 3132 wrote to memory of 1344	3132	cmd.exe	timeout.exe
PID 4784 wrote to memory of 2700	4784	80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe	cmd.exe
PID 4784 wrote to memory of 2700	4784	80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe	cmd.exe
PID 4784 wrote to memory of 2700	4784	80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe	cmd.exe
PID 2700 wrote to memory of 1752	2700	cmd.exe	timeout.exe
PID 2700 wrote to memory of 1752	2700	cmd.exe	timeout.exe
PID 2700 wrote to memory of 1752	2700	cmd.exe	timeout.exe
PID 4784 wrote to memory of 4740	4784	80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe	80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe
PID 4784 wrote to memory of 4740	4784	80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe	80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe
PID 4784 wrote to memory of 4740	4784	80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe	80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe
PID 4784 wrote to memory of 4740	4784	80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe	80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe
PID 4784 wrote to memory of 4740	4784	80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe	80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe
PID 4784 wrote to memory of 4740	4784	80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe	80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe

C:\Users\Admin\AppData\Local\Temp\80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe
"C:\Users\Admin\AppData\Local\Temp\80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4784
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout 10
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3132
- - C:\Windows\SysWOW64\timeout.exe
    timeout 10
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:1344
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout 10
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2700
- - C:\Windows\SysWOW64\timeout.exe
    timeout 10
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:1752
- C:\Users\Admin\AppData\Local\Temp\80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe
  "C:\Users\Admin\AppData\Local\Temp\80a4325072a8d0587da28929a497d615433addcab45caf75ac0e75d28b6d0dff.exe"
  2⤵
  - Checks SCSI registry key(s)
  PID:4740

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

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

memory/4740-1052-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4784-25-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-1046-0x0000000006BC0000-0x0000000006C1C000-memory.dmp

Filesize
368KB

Download
memory/4784-3-0x00000000058B0000-0x0000000005980000-memory.dmp

Filesize
832KB

Download
memory/4784-4-0x000000007501E000-0x000000007501F000-memory.dmp

Filesize
4KB

Download
memory/4784-5-0x0000000006820000-0x00000000068FC000-memory.dmp

Filesize
880KB

Download
memory/4784-64-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-70-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-69-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-66-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-60-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-59-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-56-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-54-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-52-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-27-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-42-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-40-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-38-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-36-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-33-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-31-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-29-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-46-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-2-0x0000000075010000-0x00000000757C1000-memory.dmp

Filesize
7.7MB

Download
memory/4784-7-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-23-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-21-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-19-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-15-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-13-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-11-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-10-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-132-0x0000000075010000-0x00000000757C1000-memory.dmp

Filesize
7.7MB

Download
memory/4784-6-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-63-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-50-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-48-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-44-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-35-0x0000000075010000-0x00000000757C1000-memory.dmp

Filesize
7.7MB

Download
memory/4784-18-0x0000000006820000-0x00000000068F6000-memory.dmp

Filesize
856KB

Download
memory/4784-1044-0x0000000075010000-0x00000000757C1000-memory.dmp

Filesize
7.7MB

Download
memory/4784-1045-0x0000000075010000-0x00000000757C1000-memory.dmp

Filesize
7.7MB

Download
memory/4784-0-0x000000007501E000-0x000000007501F000-memory.dmp

Filesize
4KB

Download
memory/4784-1047-0x0000000006A40000-0x0000000006A8C000-memory.dmp

Filesize
304KB

Download
memory/4784-1048-0x0000000007D50000-0x00000000082F6000-memory.dmp

Filesize
5.6MB

Download
memory/4784-1049-0x00000000070A0000-0x00000000070F4000-memory.dmp

Filesize
336KB

Download
memory/4784-1-0x0000000000DB0000-0x0000000000EBC000-memory.dmp

Filesize
1.0MB

Download
memory/4784-1053-0x0000000075010000-0x00000000757C1000-memory.dmp

Filesize
7.7MB

Download