formbook | 6b73ab2cf730e26c8609e57d23e09260d6c74db84f29ae6f786129f7a3b6512b

Analysis

max time kernel
150s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
23-09-2023 11:26

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General

Target

tmp.exe
Size

710KB
MD5

493562fc3240d634f797be4a433d72c7
SHA1

92569595aa0a20d9937bd03525a756dd35059d3b
SHA256

6b73ab2cf730e26c8609e57d23e09260d6c74db84f29ae6f786129f7a3b6512b
SHA512

70eb16d06d38d80cc4513962f6fbdeda54e6ec2bc30caa9fb112d3cd355b12c088426c823d3d4a3e315209b3fc908c0339e9cdc8de99462e87eba311f4801a75
SSDEEP

12288:406gna2iNP1UIkvEbtOgVt3KB6bxxXRZEG/p8fD5mcjtqlg6utz5l96OXaq:XTa1F14ot1aIxxAop+mc0g6MNa

Score

10^/10

formbook ro12 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ro12

Decoy

start399.com

decyfincoin.com

binguozhijiaok.com

one45.vip

55dy5s.top

regmt.pro

2ahxgaafifl.com

xn--6rtp2flvfc2h.com

justinmburns.com

los3.online

fleshaaikensdivinegiven7llc.com

servicedelv.services

apexcaryhomesforsale.com

shuraop.xyz

sagetotal.com

gratitude-et-compagnie.com

riderarea.com

digitalserviceact.online

contentbyc.com

agenda-digital-planner.com

Signatures

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

Formbook payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3336-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3336-17-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3604-23-0x0000000000960000-0x000000000098F000-memory.dmp	formbook
behavioral2/memory/3604-25-0x0000000000960000-0x000000000098F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

tmp.exetmp.exesvchost.exe

description	pid	Process	procid_target
PID 1264 set thread context of 3336	1264	tmp.exe	98
PID 3336 set thread context of 3120	3336	tmp.exe	46
PID 3604 set thread context of 3120	3604	svchost.exe	46

Modifies registry class 3 IoCs

Processes:

Explorer.EXE

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Explorer.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 47 IoCs

Processes:

tmp.exetmp.exesvchost.exe

pid	Process
1264	tmp.exe
1264	tmp.exe
1264	tmp.exe
1264	tmp.exe
1264	tmp.exe
1264	tmp.exe
1264	tmp.exe
3336	tmp.exe
3336	tmp.exe
3336	tmp.exe
3336	tmp.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe
3604	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid	Process
3120	Explorer.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

tmp.exesvchost.exe

pid	Process
3336	tmp.exe
3336	tmp.exe
3336	tmp.exe
3604	svchost.exe
3604	svchost.exe

Suspicious use of AdjustPrivilegeToken 21 IoCs

Processes:

tmp.exetmp.exesvchost.exeExplorer.EXE

description	pid	Process
Token: SeDebugPrivilege	1264	tmp.exe
Token: SeDebugPrivilege	3336	tmp.exe
Token: SeDebugPrivilege	3604	svchost.exe
Token: SeShutdownPrivilege	3120	Explorer.EXE
Token: SeCreatePagefilePrivilege	3120	Explorer.EXE
Token: SeShutdownPrivilege	3120	Explorer.EXE
Token: SeCreatePagefilePrivilege	3120	Explorer.EXE
Token: SeShutdownPrivilege	3120	Explorer.EXE
Token: SeCreatePagefilePrivilege	3120	Explorer.EXE
Token: SeShutdownPrivilege	3120	Explorer.EXE
Token: SeCreatePagefilePrivilege	3120	Explorer.EXE
Token: SeShutdownPrivilege	3120	Explorer.EXE
Token: SeCreatePagefilePrivilege	3120	Explorer.EXE
Token: SeShutdownPrivilege	3120	Explorer.EXE
Token: SeCreatePagefilePrivilege	3120	Explorer.EXE
Token: SeShutdownPrivilege	3120	Explorer.EXE
Token: SeCreatePagefilePrivilege	3120	Explorer.EXE
Token: SeShutdownPrivilege	3120	Explorer.EXE
Token: SeCreatePagefilePrivilege	3120	Explorer.EXE
Token: SeShutdownPrivilege	3120	Explorer.EXE
Token: SeCreatePagefilePrivilege	3120	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid	Process
3120	Explorer.EXE
3120	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

tmp.exeExplorer.EXEsvchost.exe

description	pid	Process	procid_target
PID 1264 wrote to memory of 3336	1264	tmp.exe	98
PID 1264 wrote to memory of 3336	1264	tmp.exe	98
PID 1264 wrote to memory of 3336	1264	tmp.exe	98
PID 1264 wrote to memory of 3336	1264	tmp.exe	98
PID 1264 wrote to memory of 3336	1264	tmp.exe	98
PID 1264 wrote to memory of 3336	1264	tmp.exe	98
PID 3120 wrote to memory of 3604	3120	Explorer.EXE	99
PID 3120 wrote to memory of 3604	3120	Explorer.EXE	99
PID 3120 wrote to memory of 3604	3120	Explorer.EXE	99
PID 3604 wrote to memory of 3160	3604	svchost.exe	100
PID 3604 wrote to memory of 3160	3604	svchost.exe	100
PID 3604 wrote to memory of 3160	3604	svchost.exe	100

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3120
- C:\Users\Admin\AppData\Local\Temp\tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1264
- - C:\Users\Admin\AppData\Local\Temp\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3336
- C:\Windows\SysWOW64\svchost.exe
  "C:\Windows\SysWOW64\svchost.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3604
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    3⤵
    PID:3160

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1264-14-0x0000000074700000-0x0000000074EB0000-memory.dmp

Filesize
7.7MB

Download
memory/1264-1-0x0000000000DF0000-0x0000000000EA8000-memory.dmp

Filesize
736KB

Download
memory/1264-2-0x0000000005E80000-0x0000000006424000-memory.dmp

Filesize
5.6MB

Download
memory/1264-3-0x00000000058D0000-0x0000000005962000-memory.dmp

Filesize
584KB

Download
memory/1264-4-0x0000000005B30000-0x0000000005B40000-memory.dmp

Filesize
64KB

Download
memory/1264-5-0x00000000058A0000-0x00000000058AA000-memory.dmp

Filesize
40KB

Download
memory/1264-6-0x0000000005E40000-0x0000000005E58000-memory.dmp

Filesize
96KB

Download
memory/1264-7-0x0000000074700000-0x0000000074EB0000-memory.dmp

Filesize
7.7MB

Download
memory/1264-8-0x0000000005B30000-0x0000000005B40000-memory.dmp

Filesize
64KB

Download
memory/1264-9-0x0000000005E70000-0x0000000005E7A000-memory.dmp

Filesize
40KB

Download
memory/1264-10-0x000000000A950000-0x000000000A9BE000-memory.dmp

Filesize
440KB

Download
memory/1264-11-0x000000000DA60000-0x000000000DAFC000-memory.dmp

Filesize
624KB

Download
memory/1264-0-0x0000000074700000-0x0000000074EB0000-memory.dmp

Filesize
7.7MB

Download
memory/3120-49-0x00000000006C0000-0x00000000006D0000-memory.dmp

Filesize
64KB

Download
memory/3120-43-0x00000000006C0000-0x00000000006D0000-memory.dmp

Filesize
64KB

Download
memory/3120-69-0x00000000006C0000-0x00000000006D0000-memory.dmp

Filesize
64KB

Download
memory/3120-68-0x00000000006C0000-0x00000000006D0000-memory.dmp

Filesize
64KB

Download
memory/3120-19-0x0000000006D70000-0x0000000006E8B000-memory.dmp

Filesize
1.1MB

Download
memory/3120-66-0x00000000006C0000-0x00000000006D0000-memory.dmp

Filesize
64KB

Download
memory/3120-64-0x00000000006C0000-0x00000000006D0000-memory.dmp

Filesize
64KB

Download
memory/3120-65-0x00000000006C0000-0x00000000006D0000-memory.dmp

Filesize
64KB

Download
memory/3120-63-0x00000000006C0000-0x00000000006D0000-memory.dmp

Filesize
64KB

Download
memory/3120-62-0x00000000006C0000-0x00000000006D0000-memory.dmp

Filesize
64KB

Download
memory/3120-61-0x0000000002630000-0x0000000002640000-memory.dmp

Filesize
64KB

Download
memory/3120-28-0x0000000008270000-0x00000000083AF000-memory.dmp

Filesize
1.2MB

Download
memory/3120-29-0x0000000008270000-0x00000000083AF000-memory.dmp

Filesize
1.2MB

Download
memory/3120-31-0x0000000008270000-0x00000000083AF000-memory.dmp

Filesize
1.2MB

Download
memory/3120-35-0x00000000006C0000-0x00000000006D0000-memory.dmp

Filesize
64KB

Download
memory/3120-36-0x00000000006C0000-0x00000000006D0000-memory.dmp

Filesize
64KB

Download
memory/3120-37-0x00000000006C0000-0x00000000006D0000-memory.dmp

Filesize
64KB

Download
memory/3120-38-0x00000000006C0000-0x00000000006D0000-memory.dmp

Filesize
64KB

Download
memory/3120-39-0x00000000006C0000-0x00000000006D0000-memory.dmp

Filesize
64KB

Download
memory/3120-40-0x00000000006C0000-0x00000000006D0000-memory.dmp

Filesize
64KB

Download
memory/3120-41-0x00000000006C0000-0x00000000006D0000-memory.dmp

Filesize
64KB

Download
memory/3120-59-0x00000000006C0000-0x00000000006D0000-memory.dmp

Filesize
64KB

Download
memory/3120-45-0x00000000006C0000-0x00000000006D0000-memory.dmp

Filesize
64KB

Download
memory/3120-46-0x00000000006C0000-0x00000000006D0000-memory.dmp

Filesize
64KB

Download
memory/3120-47-0x0000000002630000-0x0000000002640000-memory.dmp

Filesize
64KB

Download
memory/3120-48-0x00000000006C0000-0x00000000006D0000-memory.dmp

Filesize
64KB

Download
memory/3120-60-0x00000000006C0000-0x00000000006D0000-memory.dmp

Filesize
64KB

Download
memory/3120-51-0x00000000006C0000-0x00000000006D0000-memory.dmp

Filesize
64KB

Download
memory/3120-50-0x0000000002630000-0x0000000002640000-memory.dmp

Filesize
64KB

Download
memory/3120-53-0x00000000006C0000-0x00000000006D0000-memory.dmp

Filesize
64KB

Download
memory/3120-55-0x00000000006C0000-0x00000000006D0000-memory.dmp

Filesize
64KB

Download
memory/3120-57-0x00000000006C0000-0x00000000006D0000-memory.dmp

Filesize
64KB

Download
memory/3336-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3336-15-0x0000000001350000-0x000000000169A000-memory.dmp

Filesize
3.3MB

Download
memory/3336-18-0x0000000000E40000-0x0000000000E54000-memory.dmp

Filesize
80KB

Download
memory/3336-17-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3604-27-0x00000000014D0000-0x0000000001563000-memory.dmp

Filesize
588KB

Download
memory/3604-25-0x0000000000960000-0x000000000098F000-memory.dmp

Filesize
188KB

Download
memory/3604-24-0x0000000001600000-0x000000000194A000-memory.dmp

Filesize
3.3MB

Download
memory/3604-23-0x0000000000960000-0x000000000098F000-memory.dmp

Filesize
188KB

Download
memory/3604-22-0x0000000000680000-0x000000000068E000-memory.dmp

Filesize
56KB

Download
memory/3604-20-0x0000000000680000-0x000000000068E000-memory.dmp

Filesize
56KB

Download