purelogstealer | 2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
26-07-2024 20:17

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General

Target

2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe
Size

1.0MB
MD5

0a48fdb4519cfd9d0e03a5ed1c2333c6
SHA1

5929cda67aee22ecb44c00d3334d25b7d27ae6a5
SHA256

2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2
SHA512

954fd758b3bf2f3134ff7a3849937a9a47e7d872a0d09917b954dad4f5b347242b2453da49e05a0cdc399d214b1be11f1ba453eb205b3c51694089fa6db717df
SSDEEP

24576:7Zylsdd2JYkHarbgE1FoBUb8jQaqBDlhbvC4y9iGaITD:iOjmarh1GBCZDlhbvCkGaIX

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
behavioral1/memory/4720-1-0x00000000000E0000-0x00000000001EC000-memory.dmp	family_purelog_stealer

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-701583114-2636601053-947405450-1000\Control Panel\International\Geo\Nation	2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe

description	pid	process	target process
PID 4720 set thread context of 4944	4720	2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe	2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.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:

cmd.exetimeout.exe2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.execmd.exetimeout.exe

description	ioc	process
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	2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.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:

2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe

Delays execution with timeout.exe 2 IoCs
evasion

Processes:

timeout.exetimeout.exe

pid process

4444 timeout.exe
2872 timeout.exe

pid	process
4444	timeout.exe
2872	timeout.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe

description	pid	process
Token: SeDebugPrivilege	4720	2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe
Token: SeDebugPrivilege	4720	2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.execmd.execmd.exe

description	pid	process	target process
PID 4720 wrote to memory of 2816	4720	2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe	cmd.exe
PID 4720 wrote to memory of 2816	4720	2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe	cmd.exe
PID 4720 wrote to memory of 2816	4720	2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe	cmd.exe
PID 2816 wrote to memory of 2872	2816	cmd.exe	timeout.exe
PID 2816 wrote to memory of 2872	2816	cmd.exe	timeout.exe
PID 2816 wrote to memory of 2872	2816	cmd.exe	timeout.exe
PID 4720 wrote to memory of 3988	4720	2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe	cmd.exe
PID 4720 wrote to memory of 3988	4720	2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe	cmd.exe
PID 4720 wrote to memory of 3988	4720	2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe	cmd.exe
PID 3988 wrote to memory of 4444	3988	cmd.exe	timeout.exe
PID 3988 wrote to memory of 4444	3988	cmd.exe	timeout.exe
PID 3988 wrote to memory of 4444	3988	cmd.exe	timeout.exe
PID 4720 wrote to memory of 4944	4720	2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe	2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe
PID 4720 wrote to memory of 4944	4720	2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe	2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe
PID 4720 wrote to memory of 4944	4720	2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe	2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe
PID 4720 wrote to memory of 4944	4720	2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe	2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe
PID 4720 wrote to memory of 4944	4720	2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe	2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe
PID 4720 wrote to memory of 4944	4720	2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe	2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe

C:\Users\Admin\AppData\Local\Temp\2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe
"C:\Users\Admin\AppData\Local\Temp\2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4720
- 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:2816
- - C:\Windows\SysWOW64\timeout.exe
    timeout 10
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2872
- 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:3988
- - C:\Windows\SysWOW64\timeout.exe
    timeout 10
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4444
- C:\Users\Admin\AppData\Local\Temp\2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe
  "C:\Users\Admin\AppData\Local\Temp\2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2.exe"
  2⤵
  - Checks SCSI registry key(s)
  PID:4944

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/4720-45-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-6-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download
memory/4720-2-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download
memory/4720-3-0x0000000004AE0000-0x0000000004BB0000-memory.dmp

Filesize
832KB

Download
memory/4720-4-0x0000000005A90000-0x0000000005B6C000-memory.dmp

Filesize
880KB

Download
memory/4720-5-0x00000000748AE000-0x00000000748AF000-memory.dmp

Filesize
4KB

Download
memory/4720-43-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-7-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download
memory/4720-11-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-23-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-31-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-41-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-71-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-69-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-67-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-65-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-63-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-61-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-59-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-57-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-0-0x00000000748AE000-0x00000000748AF000-memory.dmp

Filesize
4KB

Download
memory/4720-51-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-49-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-47-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-55-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-1-0x00000000000E0000-0x00000000001EC000-memory.dmp

Filesize
1.0MB

Download
memory/4720-53-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-37-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-36-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-34-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-29-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-27-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-25-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-39-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-21-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-19-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-17-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-15-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-13-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-9-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-8-0x0000000005A90000-0x0000000005B66000-memory.dmp

Filesize
856KB

Download
memory/4720-1044-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download
memory/4720-1045-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download
memory/4720-1046-0x0000000005E30000-0x0000000005E8C000-memory.dmp

Filesize
368KB

Download
memory/4720-1047-0x0000000005E90000-0x0000000005EDC000-memory.dmp

Filesize
304KB

Download
memory/4720-1048-0x0000000006FB0000-0x0000000007554000-memory.dmp

Filesize
5.6MB

Download
memory/4720-1049-0x0000000006320000-0x0000000006374000-memory.dmp

Filesize
336KB

Download
memory/4720-1053-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download
memory/4944-1052-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download