formbook | c4f6b7795e7c6267497a352a75628f59778b0345d719fb49eca4967a681b5728

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
13-11-2023 06:51

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General

Target

Invoice & Banking details.exe
Size

307KB
MD5

b7da48db7a0e6e435e4b3bf5c2d17f6d
SHA1

fe98e3ac512441fa49833268753a517bfc712b35
SHA256

c4f6b7795e7c6267497a352a75628f59778b0345d719fb49eca4967a681b5728
SHA512

99e53ef8460ca9bdc46773bf9f0dc5b01d122b9ea253ce540a494a794c2727b4cd35d9822284b9bcafc135b9c6fe9e9833dda5368a4d784df23cfca215e8ceea
SSDEEP

6144:dDmad57Xe1l33j30xXoLT9Q5XFwWhNf6kV7qzjsw4IytBw5wk3:dKqXom5XF1hNf6a7lpxBvk3

Score

10^/10

formbook o11y rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

o11y

Decoy

bilenoer.online

1gocasino.click

bm9qn.top

wzefoy.com

5-minutemoney.com

tx5288.com

ssteaq.com

ztxsm2gxqvl.asia

familyfishing.world

moocytrading.com

dondebusques.com

dtservicesillinois.com

korpativnighs.com

resilientjoy.com

greensclps.com

actionkillsfear.com

siwu81.com

localorion.online

spoke99.com

taxinhanh24h.site

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
behavioral2/memory/1936-7-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1936-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1132-18-0x0000000000D80000-0x0000000000DAF000-memory.dmp	formbook
behavioral2/memory/1132-20-0x0000000000D80000-0x0000000000DAF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 208 set thread context of 1936	208	Invoice & Banking details.exe	84
PID 1936 set thread context of 3300	1936	Invoice & Banking details.exe	40
PID 1132 set thread context of 3300	1132	cmd.exe	40

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
1936	Invoice & Banking details.exe
1936	Invoice & Banking details.exe
1936	Invoice & Banking details.exe
1936	Invoice & Banking details.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe
1132	cmd.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3300	Explorer.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1936	Invoice & Banking details.exe
1936	Invoice & Banking details.exe
1936	Invoice & Banking details.exe
1132	cmd.exe
1132	cmd.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1936	Invoice & Banking details.exe
Token: SeDebugPrivilege	1132	cmd.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3300	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 208 wrote to memory of 1936	208	Invoice & Banking details.exe	84
PID 208 wrote to memory of 1936	208	Invoice & Banking details.exe	84
PID 208 wrote to memory of 1936	208	Invoice & Banking details.exe	84
PID 208 wrote to memory of 1936	208	Invoice & Banking details.exe	84
PID 208 wrote to memory of 1936	208	Invoice & Banking details.exe	84
PID 208 wrote to memory of 1936	208	Invoice & Banking details.exe	84
PID 3300 wrote to memory of 1132	3300	Explorer.EXE	88
PID 3300 wrote to memory of 1132	3300	Explorer.EXE	88
PID 3300 wrote to memory of 1132	3300	Explorer.EXE	88
PID 1132 wrote to memory of 2140	1132	cmd.exe	94
PID 1132 wrote to memory of 2140	1132	cmd.exe	94
PID 1132 wrote to memory of 2140	1132	cmd.exe	94

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3300
- C:\Users\Admin\AppData\Local\Temp\Invoice & Banking details.exe
  "C:\Users\Admin\AppData\Local\Temp\Invoice & Banking details.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:208
- - C:\Users\Admin\AppData\Local\Temp\Invoice & Banking details.exe
    "C:\Users\Admin\AppData\Local\Temp\Invoice & Banking details.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1936
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:4868
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\SysWOW64\cmd.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1132
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Invoice & Banking details.exe"
    3⤵
    PID:2140

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/208-9-0x0000000074B40000-0x00000000752F0000-memory.dmp

Filesize
7.7MB

Download
memory/208-1-0x0000000074B40000-0x00000000752F0000-memory.dmp

Filesize
7.7MB

Download
memory/208-2-0x00000000057F0000-0x0000000005D94000-memory.dmp

Filesize
5.6MB

Download
memory/208-3-0x0000000005130000-0x00000000051C2000-memory.dmp

Filesize
584KB

Download
memory/208-4-0x0000000002D40000-0x0000000002D84000-memory.dmp

Filesize
272KB

Download
memory/208-6-0x0000000002D80000-0x0000000002D8A000-memory.dmp

Filesize
40KB

Download
memory/208-5-0x0000000002DB0000-0x0000000002DC0000-memory.dmp

Filesize
64KB

Download
memory/208-0-0x00000000006E0000-0x0000000000734000-memory.dmp

Filesize
336KB

Download
memory/1132-18-0x0000000000D80000-0x0000000000DAF000-memory.dmp

Filesize
188KB

Download
memory/1132-17-0x0000000000320000-0x000000000037A000-memory.dmp

Filesize
360KB

Download
memory/1132-22-0x0000000001480000-0x0000000001514000-memory.dmp

Filesize
592KB

Download
memory/1132-20-0x0000000000D80000-0x0000000000DAF000-memory.dmp

Filesize
188KB

Download
memory/1132-19-0x0000000001620000-0x000000000196A000-memory.dmp

Filesize
3.3MB

Download
memory/1132-15-0x0000000000320000-0x000000000037A000-memory.dmp

Filesize
360KB

Download
memory/1936-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1936-10-0x0000000001150000-0x000000000149A000-memory.dmp

Filesize
3.3MB

Download
memory/1936-13-0x0000000001130000-0x0000000001145000-memory.dmp

Filesize
84KB

Download
memory/1936-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3300-14-0x00000000033E0000-0x0000000003497000-memory.dmp

Filesize
732KB

Download
memory/3300-23-0x00000000077F0000-0x00000000078A6000-memory.dmp

Filesize
728KB

Download
memory/3300-24-0x00000000077F0000-0x00000000078A6000-memory.dmp

Filesize
728KB

Download
memory/3300-25-0x00000000033E0000-0x0000000003497000-memory.dmp

Filesize
732KB

Download
memory/3300-28-0x00000000077F0000-0x00000000078A6000-memory.dmp

Filesize
728KB

Download