formbook | 5f2ffac98f596f2ac911ad825fad722dd8b313ece8a84d0ccbb3d1618fac31d3

General

Target

Scan.Salary.exe
Size

945KB
MD5

2350ab7c41c2711d6b12b157e1a3dc34
SHA1

5b93aceb600c94c186b5a59e04a4bfd661ff0dad
SHA256

9a51a3cc373a659071b939aabb27ed28c324e0e5ee7eb68967de657158e3c09f
SHA512

9c20a2946851ce935f341edd1d80325a0cc4c83f3a8a04e3b2eb664b761a81c85650405475a0c35367c1f0766b3f9c108e292d93790730d2f016d5ab0a6d4ace
SSDEEP

24576:Tl31bUgt734/iCs2sp577Rt7bIlkccI/JSqpP27DGk:Tl3xUu74/iNf7bPef/JSoP27D

Score

10^/10

formbook bkbk discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

bkbk

Decoy

myzshouse.com

elimabd.com

iandiphoto.com

k9yhf.com

lalaandthelight.com

spearteam6.com

tdv29mayiskoleji.net

senthamizholi.com

toprooferelpaso.com

homegraphicdesign.com

formas-de-ganar-dinero.online

psgvsfreelive.com

xclusivedispatch.com

qdhizwlti.icu

hananomi24.com

seikobaby.com

cursosinemlinea.com

vintage-transport.com

billings-identify.com

simplepartyplanning.com

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/860-13-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/860-18-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/860-22-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 324 set thread context of 860	324	Scan.Salary.exe	91
PID 860 set thread context of 3440	860	Scan.Salary.exe	56
PID 860 set thread context of 3440	860	Scan.Salary.exe	56
PID 2132 set thread context of 3440	2132	netsh.exe	56

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Scan.Salary.exe

Suspicious behavior: EnumeratesProcesses 44 IoCs

pid	Process
860	Scan.Salary.exe
860	Scan.Salary.exe
860	Scan.Salary.exe
860	Scan.Salary.exe
860	Scan.Salary.exe
860	Scan.Salary.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe
2132	netsh.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
860	Scan.Salary.exe
860	Scan.Salary.exe
860	Scan.Salary.exe
860	Scan.Salary.exe
2132	netsh.exe
2132	netsh.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	860	Scan.Salary.exe
Token: SeDebugPrivilege	2132	netsh.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 324 wrote to memory of 860	324	Scan.Salary.exe	91
PID 324 wrote to memory of 860	324	Scan.Salary.exe	91
PID 324 wrote to memory of 860	324	Scan.Salary.exe	91
PID 324 wrote to memory of 860	324	Scan.Salary.exe	91
PID 324 wrote to memory of 860	324	Scan.Salary.exe	91
PID 324 wrote to memory of 860	324	Scan.Salary.exe	91
PID 3440 wrote to memory of 2132	3440	Explorer.EXE	92
PID 3440 wrote to memory of 2132	3440	Explorer.EXE	92
PID 3440 wrote to memory of 2132	3440	Explorer.EXE	92
PID 2132 wrote to memory of 1880	2132	netsh.exe	93
PID 2132 wrote to memory of 1880	2132	netsh.exe	93
PID 2132 wrote to memory of 1880	2132	netsh.exe	93

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3440
- C:\Users\Admin\AppData\Local\Temp\Scan.Salary.exe
  "C:\Users\Admin\AppData\Local\Temp\Scan.Salary.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:324
- - C:\Users\Admin\AppData\Local\Temp\Scan.Salary.exe
    "C:\Users\Admin\AppData\Local\Temp\Scan.Salary.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:860
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\SysWOW64\netsh.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2132
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Scan.Salary.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1880

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/324-15-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/324-4-0x0000000005920000-0x00000000059B2000-memory.dmp

Filesize
584KB

Download
memory/324-0-0x00000000751AE000-0x00000000751AF000-memory.dmp

Filesize
4KB

Download
memory/324-3-0x0000000005E30000-0x00000000063D4000-memory.dmp

Filesize
5.6MB

Download
memory/324-11-0x0000000008C40000-0x0000000008CE6000-memory.dmp

Filesize
664KB

Download
memory/324-5-0x00000000058C0000-0x00000000058CA000-memory.dmp

Filesize
40KB

Download
memory/324-6-0x0000000005B20000-0x0000000005B76000-memory.dmp

Filesize
344KB

Download
memory/324-7-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/324-8-0x0000000008720000-0x0000000008736000-memory.dmp

Filesize
88KB

Download
memory/324-9-0x00000000751AE000-0x00000000751AF000-memory.dmp

Filesize
4KB

Download
memory/324-10-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/324-1-0x0000000000D20000-0x0000000000E12000-memory.dmp

Filesize
968KB

Download
memory/324-12-0x000000000B4B0000-0x000000000B4E4000-memory.dmp

Filesize
208KB

Download
memory/324-2-0x00000000057E0000-0x000000000587C000-memory.dmp

Filesize
624KB

Download
memory/860-18-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/860-19-0x00000000014C0000-0x00000000014D4000-memory.dmp

Filesize
80KB

Download
memory/860-16-0x0000000001540000-0x000000000188A000-memory.dmp

Filesize
3.3MB

Download
memory/860-22-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/860-23-0x0000000003420000-0x0000000003434000-memory.dmp

Filesize
80KB

Download
memory/860-13-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2132-26-0x0000000001530000-0x000000000154E000-memory.dmp

Filesize
120KB

Download
memory/2132-28-0x0000000001530000-0x000000000154E000-memory.dmp

Filesize
120KB

Download
memory/3440-24-0x00000000081F0000-0x0000000008345000-memory.dmp

Filesize
1.3MB

Download
memory/3440-25-0x0000000004720000-0x00000000048A4000-memory.dmp

Filesize
1.5MB

Download
memory/3440-20-0x0000000004720000-0x00000000048A4000-memory.dmp

Filesize
1.5MB

Download
memory/3440-29-0x00000000081F0000-0x0000000008345000-memory.dmp

Filesize
1.3MB

Download
memory/3440-32-0x0000000008350000-0x000000000849F000-memory.dmp

Filesize
1.3MB

Download
memory/3440-34-0x0000000008350000-0x000000000849F000-memory.dmp

Filesize
1.3MB

Download
memory/3440-35-0x0000000008350000-0x000000000849F000-memory.dmp

Filesize
1.3MB

Download

Analysis

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