formbook | a8ae8e0bf8aae2ee283f47dcd291dcc393ad077d7f95502eac6145d12718287a

General

Target

New Purchase Order.exe
Size

1.1MB
MD5

eaa202b477e3f9399c7712b5353e881c
SHA1

cea68d5b7243d6f5adbfd39e20f7df7344c148de
SHA256

5ccd3ceebd40c9b49d776f317256242319217ebf481bcf681559e44694612f65
SHA512

3ad512dbece5756ac3ddbc561e38c3962615d69fa1e2852e1c980a75499cff8a97c44a3023af4f7b4e2ad166bdd00840fd5f474eebf6c10d020f986aea42db01
SSDEEP

24576:MqDEvCTbMWu7rQYlBQcBiT6rprG8aLszADbt7:MTvC/MTQYxsWR7aLszw5

Score

10^/10

formbook bi05 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

bi05

Decoy

ollow-the-bit.online

aopho.autos

14ra567dp.autos

48651301.top

ussian-dating-54714.bond

sychology-degree-80838.bond

lytracker.xyz

strology-forest.sbs

swjbcl3.top

ridgenexttechnologies.partners

lroy.sbs

kyscreen.vip

anhit.live

uckyheart.xyz

orddserials.online

hetune.shop

nherited-traits-ant.bond

stanaslot-1.xyz

sychologist-therapy-36914.bond

iandramonami.net

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
behavioral1/memory/2120-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2120-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2120-20-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/584-27-0x00000000000C0000-0x00000000000EF000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2088 set thread context of 2120	2088	New Purchase Order.exe	31
PID 2120 set thread context of 1188	2120	svchost.exe	21
PID 2120 set thread context of 1188	2120	svchost.exe	21
PID 584 set thread context of 1188	584	chkdsk.exe	21

System Location Discovery: System Language Discovery 1 TTPs 4 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	New Purchase Order.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chkdsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 30 IoCs

pid	Process
2120	svchost.exe
2120	svchost.exe
2120	svchost.exe
584	chkdsk.exe
584	chkdsk.exe
584	chkdsk.exe
584	chkdsk.exe
584	chkdsk.exe
584	chkdsk.exe
584	chkdsk.exe
584	chkdsk.exe
584	chkdsk.exe
584	chkdsk.exe
584	chkdsk.exe
584	chkdsk.exe
584	chkdsk.exe
584	chkdsk.exe
584	chkdsk.exe
584	chkdsk.exe
584	chkdsk.exe
584	chkdsk.exe
584	chkdsk.exe
584	chkdsk.exe
584	chkdsk.exe
584	chkdsk.exe
584	chkdsk.exe
584	chkdsk.exe
584	chkdsk.exe
584	chkdsk.exe
584	chkdsk.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
2088	New Purchase Order.exe
2120	svchost.exe
2120	svchost.exe
2120	svchost.exe
2120	svchost.exe
584	chkdsk.exe
584	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2120	svchost.exe
Token: SeDebugPrivilege	584	chkdsk.exe

Suspicious use of FindShellTrayWindow 6 IoCs

pid	Process
2088	New Purchase Order.exe
2088	New Purchase Order.exe
1188	Explorer.EXE
1188	Explorer.EXE
1188	Explorer.EXE
1188	Explorer.EXE

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
2088	New Purchase Order.exe
2088	New Purchase Order.exe
1188	Explorer.EXE
1188	Explorer.EXE

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2088 wrote to memory of 2120	2088	New Purchase Order.exe	31
PID 2088 wrote to memory of 2120	2088	New Purchase Order.exe	31
PID 2088 wrote to memory of 2120	2088	New Purchase Order.exe	31
PID 2088 wrote to memory of 2120	2088	New Purchase Order.exe	31
PID 2088 wrote to memory of 2120	2088	New Purchase Order.exe	31
PID 2120 wrote to memory of 584	2120	svchost.exe	33
PID 2120 wrote to memory of 584	2120	svchost.exe	33
PID 2120 wrote to memory of 584	2120	svchost.exe	33
PID 2120 wrote to memory of 584	2120	svchost.exe	33
PID 584 wrote to memory of 568	584	chkdsk.exe	34
PID 584 wrote to memory of 568	584	chkdsk.exe	34
PID 584 wrote to memory of 568	584	chkdsk.exe	34
PID 584 wrote to memory of 568	584	chkdsk.exe	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1188
- C:\Users\Admin\AppData\Local\Temp\New Purchase Order.exe
  "C:\Users\Admin\AppData\Local\Temp\New Purchase Order.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2088
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\New Purchase Order.exe"
    3⤵
    - 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:2120
  - - C:\Windows\SysWOW64\chkdsk.exe
      "C:\Windows\SysWOW64\chkdsk.exe"
      4⤵
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Enumerates system info in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:584
    - - C:\Windows\SysWOW64\cmd.exe
        
        /c del "C:\Windows\SysWOW64\svchost.exe"
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:568
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2860

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

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/584-24-0x0000000000BF0000-0x0000000000BF7000-memory.dmp

Filesize
28KB

Download
memory/584-27-0x00000000000C0000-0x00000000000EF000-memory.dmp

Filesize
188KB

Download
memory/584-25-0x0000000000BF0000-0x0000000000BF7000-memory.dmp

Filesize
28KB

Download
memory/1188-22-0x00000000078C0000-0x0000000007A28000-memory.dmp

Filesize
1.4MB

Download
memory/1188-26-0x0000000005170000-0x000000000524C000-memory.dmp

Filesize
880KB

Download
memory/1188-16-0x0000000003C10000-0x0000000003D10000-memory.dmp

Filesize
1024KB

Download
memory/1188-18-0x00000000078C0000-0x0000000007A28000-memory.dmp

Filesize
1.4MB

Download
memory/1188-23-0x0000000005170000-0x000000000524C000-memory.dmp

Filesize
880KB

Download
memory/1188-35-0x0000000007D60000-0x0000000007ED7000-memory.dmp

Filesize
1.5MB

Download
memory/1188-33-0x0000000007D60000-0x0000000007ED7000-memory.dmp

Filesize
1.5MB

Download
memory/1188-32-0x0000000007D60000-0x0000000007ED7000-memory.dmp

Filesize
1.5MB

Download
memory/1188-28-0x0000000003EA0000-0x00000000040A0000-memory.dmp

Filesize
2.0MB

Download
memory/2088-11-0x0000000000120000-0x0000000000124000-memory.dmp

Filesize
16KB

Download
memory/2120-13-0x0000000000700000-0x0000000000A03000-memory.dmp

Filesize
3.0MB

Download
memory/2120-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2120-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2120-17-0x0000000000270000-0x0000000000284000-memory.dmp

Filesize
80KB

Download
memory/2120-20-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2120-21-0x00000000002B0000-0x00000000002C4000-memory.dmp

Filesize
80KB

Download

Analysis

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