00200e6509546b08e0c10ab557120dec6ec95b16134dcbcb75c25781dddfa04d

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
15/10/2024, 21:26

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General

Target
00200e6509546b08e0c10ab557120dec6ec95b16134dcbcb75c25781dddfa04d.exe
Size 198KB
Sample241015-1abffssbrq
SHA256 00200e6509546b08e0c10ab557120dec6ec95b16134dcbcb75c25781dddfa04d
MD5 543effabc8a977f28a337dfde847c4c1
SHA1 ad8acc2befb9f9a57c94c8c73dba2f54f160e7dc
SHA512 b6d8453f8fcf8a0eded4b3973af35992cc6e2a186f52092e04855ca9c0c3edf49ecf7b31371350dbbac82a596b811e26dae2db512c57149e7a4813669d8bb369
SSDEEP 3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkT:X2vnSwjaOcADw9cUeCOf
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

bootkit discovery persistence spyware stealer

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2972	swxxs.exe

Executes dropped EXE 2 IoCs

pid	Process
2972	swxxs.exe
3660	bjkkpppu.exe

Loads dropped DLL 1 IoCs

pid	Process
3660	bjkkpppu.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Depend = "c:\\Program Files\\ijksp\\bjkkpppu.exe \"c:\\Program Files\\ijksp\\bjkkpppu.dll\",Compliance"	bjkkpppu.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\i:	bjkkpppu.exe
File opened (read-only)	\??\m:	bjkkpppu.exe
File opened (read-only)	\??\q:	bjkkpppu.exe
File opened (read-only)	\??\s:	bjkkpppu.exe
File opened (read-only)	\??\w:	bjkkpppu.exe
File opened (read-only)	\??\h:	bjkkpppu.exe
File opened (read-only)	\??\k:	bjkkpppu.exe
File opened (read-only)	\??\n:	bjkkpppu.exe
File opened (read-only)	\??\p:	bjkkpppu.exe
File opened (read-only)	\??\r:	bjkkpppu.exe
File opened (read-only)	\??\u:	bjkkpppu.exe
File opened (read-only)	\??\z:	bjkkpppu.exe
File opened (read-only)	\??\a:	bjkkpppu.exe
File opened (read-only)	\??\b:	bjkkpppu.exe
File opened (read-only)	\??\j:	bjkkpppu.exe
File opened (read-only)	\??\o:	bjkkpppu.exe
File opened (read-only)	\??\x:	bjkkpppu.exe
File opened (read-only)	\??\y:	bjkkpppu.exe
File opened (read-only)	\??\e:	bjkkpppu.exe
File opened (read-only)	\??\g:	bjkkpppu.exe
File opened (read-only)	\??\l:	bjkkpppu.exe
File opened (read-only)	\??\t:	bjkkpppu.exe
File opened (read-only)	\??\v:	bjkkpppu.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PHYSICALDRIVE0	bjkkpppu.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\ijksp	swxxs.exe
File created	\??\c:\Program Files\ijksp\bjkkpppu.dll	swxxs.exe
File created	\??\c:\Program Files\ijksp\bjkkpppu.exe	swxxs.exe
File opened for modification	\??\c:\Program Files\ijksp\bjkkpppu.exe	swxxs.exe

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	00200e6509546b08e0c10ab557120dec6ec95b16134dcbcb75c25781dddfa04d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	swxxs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bjkkpppu.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4068	PING.EXE
3732	cmd.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	bjkkpppu.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	bjkkpppu.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4068	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3660	bjkkpppu.exe
3660	bjkkpppu.exe
3660	bjkkpppu.exe
3660	bjkkpppu.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3660	bjkkpppu.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4468	00200e6509546b08e0c10ab557120dec6ec95b16134dcbcb75c25781dddfa04d.exe
2972	swxxs.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4468 wrote to memory of 3732	4468	00200e6509546b08e0c10ab557120dec6ec95b16134dcbcb75c25781dddfa04d.exe	86
PID 4468 wrote to memory of 3732	4468	00200e6509546b08e0c10ab557120dec6ec95b16134dcbcb75c25781dddfa04d.exe	86
PID 4468 wrote to memory of 3732	4468	00200e6509546b08e0c10ab557120dec6ec95b16134dcbcb75c25781dddfa04d.exe	86
PID 3732 wrote to memory of 4068	3732	cmd.exe	89
PID 3732 wrote to memory of 4068	3732	cmd.exe	89
PID 3732 wrote to memory of 4068	3732	cmd.exe	89
PID 3732 wrote to memory of 2972	3732	cmd.exe	90
PID 3732 wrote to memory of 2972	3732	cmd.exe	90
PID 3732 wrote to memory of 2972	3732	cmd.exe	90
PID 2972 wrote to memory of 3660	2972	swxxs.exe	91
PID 2972 wrote to memory of 3660	2972	swxxs.exe	91
PID 2972 wrote to memory of 3660	2972	swxxs.exe	91

C:\Users\Admin\AppData\Local\Temp\00200e6509546b08e0c10ab557120dec6ec95b16134dcbcb75c25781dddfa04d.exe
"C:\Users\Admin\AppData\Local\Temp\00200e6509546b08e0c10ab557120dec6ec95b16134dcbcb75c25781dddfa04d.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4468
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\swxxs.exe "C:\Users\Admin\AppData\Local\Temp\00200e6509546b08e0c10ab557120dec6ec95b16134dcbcb75c25781dddfa04d.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3732
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:4068
- - C:\Users\Admin\AppData\Local\Temp\swxxs.exe
    C:\Users\Admin\AppData\Local\Temp\\swxxs.exe "C:\Users\Admin\AppData\Local\Temp\00200e6509546b08e0c10ab557120dec6ec95b16134dcbcb75c25781dddfa04d.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2972
  - - \??\c:\Program Files\ijksp\bjkkpppu.exe
      "c:\Program Files\ijksp\bjkkpppu.exe" "c:\Program Files\ijksp\bjkkpppu.dll",Compliance C:\Users\Admin\AppData\Local\Temp\swxxs.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3660

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

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

bjkkpppu.exe

Path C:\Program Files\ijksp\bjkkpppu.exe
Size 60KB
SHA256 6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910
MD5 889b99c52a60dd49227c5e485a016679
SHA1 8fa889e456aa646a4d0a4349977430ce5fa5e2d7
SHA512 08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641
SSDEEP 1536:H9ykYCTdiHQKrFXmw2RQln5IUmDjoX6+:HlMHprF2nRQln5I
MD5 SHA1 SHA512 SSDEEP

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swxxs.exe

Path C:\Users\Admin\AppData\Local\Temp\swxxs.exe
Size 198KB
SHA256 2dd6284ea27c388b98a95f410a1735d5508469c71dc36cd62e586947419b640a
MD5 3b5ccd1e04442df0a03fb6c17c5bf7fc
SHA1 b251449cbf9a40944e7a7869d51fd9547b8bd47b
SHA512 bea3ffd705ad70df9225d30342c7a48c7b66733ceac2b4dc0afadebec1b803927a17642e9c5f557589f165535f7b83fa95d0ccd3912a83468afafcd351a290ca
SSDEEP 3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkTi:X2vnSwjaOcADw9cUeCOf8
MD5 SHA1 SHA512 SSDEEP

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bjkkpppu.dll

Path \??\c:\Program Files\ijksp\bjkkpppu.dll
Size 141KB
SHA256 d328128c0983124ecd8b4475ceb7b7bcf584d5f5653901c3ac03289fd8120ae2
MD5 25a7d08cb44e509d4180b44c408e15f3
SHA1 f7761a548be8e5e94b2a2735a6f54f6591dccd74
SHA512 b72ecee759e37d2d62c3ea15f5599609b25adf6d2f4e26bac039a4a7f38e9fcb690da43e2fba83630ba329bf2d7fa1eb63a5a913939714bb6ad73832aa89c93c
SSDEEP 3072:RGmRmNJToTJfp2D1QzpSyiJEkGSPf1bc4lS:RGMmfToTJY6zpSyvkGSn1tlS
MD5 SHA1 SHA512 SSDEEP

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memory/2972-9-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/2972-10-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/2972-16-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/3660-20-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/3660-21-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/3660-25-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/4468-5-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4468-0-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4468-1-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4468-2-0x0000000000400000-0x000000000044901D-memory.dmp

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