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
behavioral1/memory/2900-12-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/2900-16-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/2900-20-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2588 set thread context of 2900	2588	Scan.Salary.exe	31
PID 2900 set thread context of 1192	2900	Scan.Salary.exe	21
PID 2900 set thread context of 1192	2900	Scan.Salary.exe	21

System Location Discovery: System Language Discovery 1 TTPs 1 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	Scan.Salary.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2900	Scan.Salary.exe
2900	Scan.Salary.exe
2900	Scan.Salary.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2900	Scan.Salary.exe
2900	Scan.Salary.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2900	Scan.Salary.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2588 wrote to memory of 2900	2588	Scan.Salary.exe	31
PID 2588 wrote to memory of 2900	2588	Scan.Salary.exe	31
PID 2588 wrote to memory of 2900	2588	Scan.Salary.exe	31
PID 2588 wrote to memory of 2900	2588	Scan.Salary.exe	31
PID 2588 wrote to memory of 2900	2588	Scan.Salary.exe	31
PID 2588 wrote to memory of 2900	2588	Scan.Salary.exe	31
PID 2588 wrote to memory of 2900	2588	Scan.Salary.exe	31

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1192
- 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:2588
- - 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:2900

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/1192-24-0x0000000004ED0000-0x0000000004FA1000-memory.dmp

Filesize
836KB

Download
memory/1192-22-0x0000000004ED0000-0x0000000004FA1000-memory.dmp

Filesize
836KB

Download
memory/1192-23-0x00000000072A0000-0x0000000007414000-memory.dmp

Filesize
1.5MB

Download
memory/1192-18-0x00000000072A0000-0x0000000007414000-memory.dmp

Filesize
1.5MB

Download
memory/2588-3-0x0000000000920000-0x0000000000936000-memory.dmp

Filesize
88KB

Download
memory/2588-5-0x00000000748C0000-0x0000000074FAE000-memory.dmp

Filesize
6.9MB

Download
memory/2588-6-0x0000000008230000-0x00000000082D6000-memory.dmp

Filesize
664KB

Download
memory/2588-7-0x00000000041B0000-0x00000000041E4000-memory.dmp

Filesize
208KB

Download
memory/2588-4-0x00000000748CE000-0x00000000748CF000-memory.dmp

Filesize
4KB

Download
memory/2588-2-0x00000000748C0000-0x0000000074FAE000-memory.dmp

Filesize
6.9MB

Download
memory/2588-0-0x00000000748CE000-0x00000000748CF000-memory.dmp

Filesize
4KB

Download
memory/2588-1-0x00000000000B0000-0x00000000001A2000-memory.dmp

Filesize
968KB

Download
memory/2588-13-0x00000000748C0000-0x0000000074FAE000-memory.dmp

Filesize
6.9MB

Download
memory/2900-12-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2900-17-0x00000000003A0000-0x00000000003B4000-memory.dmp

Filesize
80KB

Download
memory/2900-16-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2900-14-0x0000000000880000-0x0000000000B83000-memory.dmp

Filesize
3.0MB

Download
memory/2900-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2900-21-0x00000000003E0000-0x00000000003F4000-memory.dmp

Filesize
80KB

Download
memory/2900-20-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2900-9-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2900-8-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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