formbook | 6b73ab2cf730e26c8609e57d23e09260d6c74db84f29ae6f786129f7a3b6512b

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

resource	yara_rule
behavioral2/memory/3056-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3056-17-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3288-22-0x0000000000C70000-0x0000000000C9F000-memory.dmp	formbook
behavioral2/memory/3288-24-0x0000000000C70000-0x0000000000C9F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4656 set thread context of 3056	4656	tmp.exe	99
PID 3056 set thread context of 3188	3056	tmp.exe	52
PID 3288 set thread context of 3188	3288	cmmon32.exe	52

Suspicious behavior: EnumeratesProcesses 46 IoCs

pid	Process
4656	tmp.exe
4656	tmp.exe
4656	tmp.exe
4656	tmp.exe
4656	tmp.exe
4656	tmp.exe
3056	tmp.exe
3056	tmp.exe
3056	tmp.exe
3056	tmp.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe
3288	cmmon32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3188	Explorer.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
3056	tmp.exe
3056	tmp.exe
3056	tmp.exe
3288	cmmon32.exe
3288	cmmon32.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4656	tmp.exe
Token: SeDebugPrivilege	3056	tmp.exe
Token: SeDebugPrivilege	3288	cmmon32.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3188	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4656 wrote to memory of 3056	4656	tmp.exe	99
PID 4656 wrote to memory of 3056	4656	tmp.exe	99
PID 4656 wrote to memory of 3056	4656	tmp.exe	99
PID 4656 wrote to memory of 3056	4656	tmp.exe	99
PID 4656 wrote to memory of 3056	4656	tmp.exe	99
PID 4656 wrote to memory of 3056	4656	tmp.exe	99
PID 3188 wrote to memory of 3288	3188	Explorer.EXE	100
PID 3188 wrote to memory of 3288	3188	Explorer.EXE	100
PID 3188 wrote to memory of 3288	3188	Explorer.EXE	100
PID 3288 wrote to memory of 640	3288	cmmon32.exe	101
PID 3288 wrote to memory of 640	3288	cmmon32.exe	101
PID 3288 wrote to memory of 640	3288	cmmon32.exe	101

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3188
- 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:4656
- - 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:3056
- C:\Windows\SysWOW64\cmmon32.exe
  "C:\Windows\SysWOW64\cmmon32.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3288
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    3⤵
    PID:640

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/3056-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3056-18-0x0000000001DA0000-0x0000000001DB4000-memory.dmp

Filesize
80KB

Download
memory/3056-17-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3056-15-0x0000000001A30000-0x0000000001D7A000-memory.dmp

Filesize
3.3MB

Download
memory/3188-31-0x00000000086A0000-0x0000000008827000-memory.dmp

Filesize
1.5MB

Download
memory/3188-29-0x00000000086A0000-0x0000000008827000-memory.dmp

Filesize
1.5MB

Download
memory/3188-28-0x00000000086A0000-0x0000000008827000-memory.dmp

Filesize
1.5MB

Download
memory/3188-25-0x0000000002940000-0x0000000002A32000-memory.dmp

Filesize
968KB

Download
memory/3188-19-0x0000000002940000-0x0000000002A32000-memory.dmp

Filesize
968KB

Download
memory/3288-23-0x0000000002B40000-0x0000000002E8A000-memory.dmp

Filesize
3.3MB

Download
memory/3288-24-0x0000000000C70000-0x0000000000C9F000-memory.dmp

Filesize
188KB

Download
memory/3288-27-0x0000000002A40000-0x0000000002AD3000-memory.dmp

Filesize
588KB

Download
memory/3288-22-0x0000000000C70000-0x0000000000C9F000-memory.dmp

Filesize
188KB

Download
memory/3288-21-0x0000000000720000-0x000000000072C000-memory.dmp

Filesize
48KB

Download
memory/3288-20-0x0000000000720000-0x000000000072C000-memory.dmp

Filesize
48KB

Download
memory/4656-1-0x0000000000CA0000-0x0000000000D58000-memory.dmp

Filesize
736KB

Download
memory/4656-6-0x00000000058F0000-0x0000000005908000-memory.dmp

Filesize
96KB

Download
memory/4656-5-0x0000000005770000-0x000000000577A000-memory.dmp

Filesize
40KB

Download
memory/4656-8-0x0000000005930000-0x0000000005940000-memory.dmp

Filesize
64KB

Download
memory/4656-14-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download
memory/4656-9-0x0000000005920000-0x000000000592A000-memory.dmp

Filesize
40KB

Download
memory/4656-7-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download
memory/4656-10-0x000000000A830000-0x000000000A89E000-memory.dmp

Filesize
440KB

Download
memory/4656-4-0x0000000005930000-0x0000000005940000-memory.dmp

Filesize
64KB

Download
memory/4656-11-0x0000000009340000-0x00000000093DC000-memory.dmp

Filesize
624KB

Download
memory/4656-3-0x00000000057B0000-0x0000000005842000-memory.dmp

Filesize
584KB

Download
memory/4656-2-0x0000000005CC0000-0x0000000006264000-memory.dmp

Filesize
5.6MB

Download
memory/4656-0-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download

Analysis

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