formbook | 4873fc7cab19439ccbc5cfffcc818ed55cd682cd5475889c7062476a877438ce

Analysis

max time kernel
149s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
17/04/2024, 23:53

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General

Target

$PLUGINSDIR/jaqxzro.dll
Size

29KB
MD5

1e8aa5fcc0f7de7a0836081dd9efff05
SHA1

48317ef5f587f52fd34b42164dfb893dcde95e1b
SHA256

5389af7b3d0f5a3496cd2aa538a6ee01fd5a9bd1a8fcf3b9411f4112313d43af
SHA512

addd27d8923bf5d3f7d87e3eb2f6138d05532aa7c9340fde2f998a84fa87f227b63cd515176940de099d4f8dc46d1ab7467f4e347e266d0ef128d7337d79ea16
SSDEEP

384:IcOhNOWCf3iUgfews69swci/+9YFmtgqQzZQFORdP2NG6zZHZD24mYfVSUB+V6G4:DC9szi/MeqQqgRd2pZMbwjGANT5

Score

10^/10

formbook w6ya rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

w6ya

Decoy

auden-audio.com

zombieodyssey.com

hdpthg.com

toddtechnical.com

njsdgz.com

yieldfarm.world

guardsveirfynews.net

atmamandir.info

eskisehirtostcusu.online

arrozz.net

v99king.win

jaxonboxing.com

morganevans.net

syandeg.com

valleyofplants.com

corsosportorico.com

tak.support

blacktgpc.com

herdpetshop.com

iifkvhns.xyz

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral3/memory/2868-4-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral3/memory/2868-9-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral3/memory/2572-15-0x0000000000090000-0x00000000000BF000-memory.dmp	formbook
behavioral3/memory/2572-17-0x0000000000090000-0x00000000000BF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2996 set thread context of 2868	2996	rundll32.exe	29
PID 2868 set thread context of 1208	2868	rundll32.exe	21
PID 2572 set thread context of 1208	2572	cmstp.exe	21

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2868	rundll32.exe
2868	rundll32.exe
2572	cmstp.exe
2572	cmstp.exe
2572	cmstp.exe
2572	cmstp.exe
2572	cmstp.exe
2572	cmstp.exe
2572	cmstp.exe
2572	cmstp.exe
2572	cmstp.exe
2572	cmstp.exe
2572	cmstp.exe
2572	cmstp.exe
2572	cmstp.exe
2572	cmstp.exe
2572	cmstp.exe
2572	cmstp.exe
2572	cmstp.exe
2572	cmstp.exe
2572	cmstp.exe
2572	cmstp.exe
2572	cmstp.exe
2572	cmstp.exe
2572	cmstp.exe
2572	cmstp.exe
2572	cmstp.exe
2572	cmstp.exe
2572	cmstp.exe
2572	cmstp.exe
2572	cmstp.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2868	rundll32.exe
2868	rundll32.exe
2868	rundll32.exe
2572	cmstp.exe
2572	cmstp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2868	rundll32.exe
Token: SeDebugPrivilege	2572	cmstp.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2940 wrote to memory of 2996	2940	rundll32.exe	28
PID 2940 wrote to memory of 2996	2940	rundll32.exe	28
PID 2940 wrote to memory of 2996	2940	rundll32.exe	28
PID 2940 wrote to memory of 2996	2940	rundll32.exe	28
PID 2940 wrote to memory of 2996	2940	rundll32.exe	28
PID 2940 wrote to memory of 2996	2940	rundll32.exe	28
PID 2940 wrote to memory of 2996	2940	rundll32.exe	28
PID 2996 wrote to memory of 2868	2996	rundll32.exe	29
PID 2996 wrote to memory of 2868	2996	rundll32.exe	29
PID 2996 wrote to memory of 2868	2996	rundll32.exe	29
PID 2996 wrote to memory of 2868	2996	rundll32.exe	29
PID 2996 wrote to memory of 2868	2996	rundll32.exe	29
PID 2996 wrote to memory of 2868	2996	rundll32.exe	29
PID 2996 wrote to memory of 2868	2996	rundll32.exe	29
PID 2996 wrote to memory of 2868	2996	rundll32.exe	29
PID 2996 wrote to memory of 2868	2996	rundll32.exe	29
PID 2996 wrote to memory of 2868	2996	rundll32.exe	29
PID 1208 wrote to memory of 2572	1208	Explorer.EXE	31
PID 1208 wrote to memory of 2572	1208	Explorer.EXE	31
PID 1208 wrote to memory of 2572	1208	Explorer.EXE	31
PID 1208 wrote to memory of 2572	1208	Explorer.EXE	31
PID 1208 wrote to memory of 2572	1208	Explorer.EXE	31
PID 1208 wrote to memory of 2572	1208	Explorer.EXE	31
PID 1208 wrote to memory of 2572	1208	Explorer.EXE	31
PID 2572 wrote to memory of 2788	2572	cmstp.exe	32
PID 2572 wrote to memory of 2788	2572	cmstp.exe	32
PID 2572 wrote to memory of 2788	2572	cmstp.exe	32
PID 2572 wrote to memory of 2788	2572	cmstp.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1208
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\jaqxzro.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2940
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\jaqxzro.dll,#1
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:2996
  - - C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\jaqxzro.dll,#1
      4⤵
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:2868
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1288
- C:\Windows\SysWOW64\cmstp.exe
  "C:\Windows\SysWOW64\cmstp.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2572
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\rundll32.exe"
    3⤵
    PID:2788

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1208-11-0x0000000002C70000-0x0000000002D70000-memory.dmp

Filesize
1024KB

Download
memory/1208-21-0x0000000004D80000-0x0000000004EC3000-memory.dmp

Filesize
1.3MB

Download
memory/1208-12-0x0000000004D80000-0x0000000004EC3000-memory.dmp

Filesize
1.3MB

Download
memory/2572-19-0x0000000000550000-0x00000000005E3000-memory.dmp

Filesize
588KB

Download
memory/2572-17-0x0000000000090000-0x00000000000BF000-memory.dmp

Filesize
188KB

Download
memory/2572-16-0x0000000002080000-0x0000000002383000-memory.dmp

Filesize
3.0MB

Download
memory/2572-15-0x0000000000090000-0x00000000000BF000-memory.dmp

Filesize
188KB

Download
memory/2572-14-0x0000000000940000-0x0000000000958000-memory.dmp

Filesize
96KB

Download
memory/2572-13-0x0000000000940000-0x0000000000958000-memory.dmp

Filesize
96KB

Download
memory/2868-4-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2868-10-0x00000000001C0000-0x00000000001D4000-memory.dmp

Filesize
80KB

Download
memory/2868-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2868-7-0x00000000021B0000-0x00000000024B3000-memory.dmp

Filesize
3.0MB

Download
memory/2996-6-0x00000000745F0000-0x00000000745FB000-memory.dmp

Filesize
44KB

Download
memory/2996-5-0x0000000074600000-0x000000007460B000-memory.dmp

Filesize
44KB

Download
memory/2996-0-0x0000000074600000-0x000000007460B000-memory.dmp

Filesize
44KB

Download
memory/2996-3-0x00000000745F0000-0x00000000745FB000-memory.dmp

Filesize
44KB

Download
memory/2996-2-0x0000000074600000-0x000000007460B000-memory.dmp

Filesize
44KB

Download
memory/2996-1-0x00000000745F0000-0x00000000745FB000-memory.dmp

Filesize
44KB

Download