dc5b8b01235220bc9da62efbbd81775861c327b8fcdb64750d0679261dfce9a4

General

Target

dc5b8b01235220bc9da62efbbd81775861c327b8fcdb64750d0679261dfce9a4.exe
Size

153KB
MD5

9b720aee6f6fefef3d7b3374d3771ccb
SHA1

7aa9d3b0d6d29f7638a540f7d049cac67ab587bf
SHA256

dc5b8b01235220bc9da62efbbd81775861c327b8fcdb64750d0679261dfce9a4
SHA512

62136647dfa7dc13aabe21a3a169bf7556ea58545c9735379c89ab6b06f52b854c963b05678859e6b8a41d21b501b7b2f343bfc779adc60f1aa594131ab188e4
SSDEEP

3072:oZpYg19EeiLLmjempGuCYooEK1JWaCItULG3rt2Wcora4dIE:OPjEl6jLiQ1JW+Oy3p/N

Score

7^/10

bootkit persistence spyware stealer

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x003a000000013362-16.dat	acprotect

Deletes itself 1 IoCs

pid	Process
2644	azxjyrlqj.exe

Executes dropped EXE 2 IoCs

pid	Process
2644	azxjyrlqj.exe
2788	jaijevki.exe

Loads dropped DLL 7 IoCs

pid	Process
108	cmd.exe
108	cmd.exe
2644	azxjyrlqj.exe
2788	jaijevki.exe
2788	jaijevki.exe
2788	jaijevki.exe
2788	jaijevki.exe

Reads user/profile data of web browsers 2 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

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-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Run\Linycpy = "c:\\Program Files\\ytszb\\jaijevki.exe \"c:\\Program Files\\ytszb\\jaijevki.dll\",SetHandle"	jaijevki.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)	\??\h:	jaijevki.exe
File opened (read-only)	\??\m:	jaijevki.exe
File opened (read-only)	\??\o:	jaijevki.exe
File opened (read-only)	\??\u:	jaijevki.exe
File opened (read-only)	\??\z:	jaijevki.exe
File opened (read-only)	\??\q:	jaijevki.exe
File opened (read-only)	\??\v:	jaijevki.exe
File opened (read-only)	\??\a:	jaijevki.exe
File opened (read-only)	\??\b:	jaijevki.exe
File opened (read-only)	\??\g:	jaijevki.exe
File opened (read-only)	\??\i:	jaijevki.exe
File opened (read-only)	\??\j:	jaijevki.exe
File opened (read-only)	\??\p:	jaijevki.exe
File opened (read-only)	\??\x:	jaijevki.exe
File opened (read-only)	\??\y:	jaijevki.exe
File opened (read-only)	\??\w:	jaijevki.exe
File opened (read-only)	\??\k:	jaijevki.exe
File opened (read-only)	\??\l:	jaijevki.exe
File opened (read-only)	\??\n:	jaijevki.exe
File opened (read-only)	\??\r:	jaijevki.exe
File opened (read-only)	\??\s:	jaijevki.exe
File opened (read-only)	\??\t:	jaijevki.exe
File opened (read-only)	\??\e:	jaijevki.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	jaijevki.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\ytszb	azxjyrlqj.exe
File created	\??\c:\Program Files\ytszb\jaijevki.dll	azxjyrlqj.exe
File created	\??\c:\Program Files\ytszb\jaijevki.exe	azxjyrlqj.exe
File opened for modification	\??\c:\Program Files\ytszb\jaijevki.exe	azxjyrlqj.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	jaijevki.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	jaijevki.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1812	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2788	jaijevki.exe
2788	jaijevki.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2788	jaijevki.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2176	dc5b8b01235220bc9da62efbbd81775861c327b8fcdb64750d0679261dfce9a4.exe
2644	azxjyrlqj.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2176 wrote to memory of 108	2176	dc5b8b01235220bc9da62efbbd81775861c327b8fcdb64750d0679261dfce9a4.exe	28
PID 2176 wrote to memory of 108	2176	dc5b8b01235220bc9da62efbbd81775861c327b8fcdb64750d0679261dfce9a4.exe	28
PID 2176 wrote to memory of 108	2176	dc5b8b01235220bc9da62efbbd81775861c327b8fcdb64750d0679261dfce9a4.exe	28
PID 2176 wrote to memory of 108	2176	dc5b8b01235220bc9da62efbbd81775861c327b8fcdb64750d0679261dfce9a4.exe	28
PID 108 wrote to memory of 1812	108	cmd.exe	30
PID 108 wrote to memory of 1812	108	cmd.exe	30
PID 108 wrote to memory of 1812	108	cmd.exe	30
PID 108 wrote to memory of 1812	108	cmd.exe	30
PID 108 wrote to memory of 2644	108	cmd.exe	31
PID 108 wrote to memory of 2644	108	cmd.exe	31
PID 108 wrote to memory of 2644	108	cmd.exe	31
PID 108 wrote to memory of 2644	108	cmd.exe	31
PID 2644 wrote to memory of 2788	2644	azxjyrlqj.exe	32
PID 2644 wrote to memory of 2788	2644	azxjyrlqj.exe	32
PID 2644 wrote to memory of 2788	2644	azxjyrlqj.exe	32
PID 2644 wrote to memory of 2788	2644	azxjyrlqj.exe	32

C:\Users\Admin\AppData\Local\Temp\dc5b8b01235220bc9da62efbbd81775861c327b8fcdb64750d0679261dfce9a4.exe
"C:\Users\Admin\AppData\Local\Temp\dc5b8b01235220bc9da62efbbd81775861c327b8fcdb64750d0679261dfce9a4.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2176
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\azxjyrlqj.exe "C:\Users\Admin\AppData\Local\Temp\dc5b8b01235220bc9da62efbbd81775861c327b8fcdb64750d0679261dfce9a4.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:108
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - Runs ping.exe
    PID:1812
- - C:\Users\Admin\AppData\Local\Temp\azxjyrlqj.exe
    C:\Users\Admin\AppData\Local\Temp\\azxjyrlqj.exe "C:\Users\Admin\AppData\Local\Temp\dc5b8b01235220bc9da62efbbd81775861c327b8fcdb64750d0679261dfce9a4.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Loads dropped DLL
    - Drops file in Program Files directory
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2644
  - - \??\c:\Program Files\ytszb\jaijevki.exe
      "c:\Program Files\ytszb\jaijevki.exe" "c:\Program Files\ytszb\jaijevki.dll",SetHandle C:\Users\Admin\AppData\Local\Temp\azxjyrlqj.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2788

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\??\c:\Program Files\ytszb\jaijevki.dll

Filesize
128KB

MD5
860c6d5d8f3f8934f3d1e9c3402b60c8

SHA1
cc699780fd32c097ab1cabccedd9b6bde9480aa6

SHA256
2fdff44fbf0933fc5148137a46adfe0bae4c9d547f1bca31f0b6286d289a75fa

SHA512
06e7cca18c65f6094dd183a681d3214077480d375a1ac532c331a6ffd6f4f197b7c88a3f74c9f4011ab11db112bce5d71ab8fb684f0450a7c6d943b74f945c74

Download Submit
\Program Files\ytszb\jaijevki.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
\Users\Admin\AppData\Local\Temp\azxjyrlqj.exe

Filesize
154KB

MD5
ec9b53bfafacdf0b4263d0ad58e563e0

SHA1
ddc2e5a2fddfe3ec05f0a1bc36a545a2a351014d

SHA256
40f99fca320dd22ddfb1878c16ead6edd818ef733cefd337e0678503c283fb63

SHA512
fa9a92f1ab85e73922a901dd02c6a04e38a007a33226a63d5c30802c78fbbcc02463c170abe0e02433b4d37ad4c6079f1169262246b7cf2479e8adba4722ac0f

Download Submit
memory/108-7-0x0000000000530000-0x0000000000560000-memory.dmp

Filesize
192KB

Download
memory/2176-0-0x0000000000400000-0x000000000042F036-memory.dmp

Filesize
188KB

Download
memory/2176-2-0x0000000000400000-0x000000000042F036-memory.dmp

Filesize
188KB

Download
memory/2644-14-0x0000000000400000-0x000000000042F036-memory.dmp

Filesize
188KB

Download
memory/2788-23-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/2788-22-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/2788-24-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/2788-28-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/2788-29-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads