formbook | 09c9a87a24ffd436df9cbe40a9caeaa04e947c029e6a8a9780d7a16e90ce073d

General

Target

ORDEN DE COMPRA URGENTE pdf hjk.exe
Size

577KB
MD5

a66ac03d7eba955eb333287291e4a24f
SHA1

0eb687b7d0fd4d282caebbeae42bf744df7907ae
SHA256

6bf2f4d58a837d790e914f36b0056e955c35ea5571d5a758b0e0f052e8b4294f
SHA512

c076903a48d9965d7fc97cbc8606f4fd50c9eb7477794991efc519393d720f4d54765d22b0e366e0efbcbbe68b3fe915e8f43847f263683b64af902dc4bba525
SSDEEP

12288:oXwQXxqmIL0WCuZvtjIsIlxQPtVEZ9nYc5Gy7RjallylSx1o:obBq0TuZvysIlejU99oy7Rjm

Score

10^/10

formbook de08 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

de08

Decoy

retirecloudyyard.com

fabiyan.xyz

chrisarlyde.com

selapex.com

vivalosgales.com

specialty-medicine.com

contasesolucoes.com

satunusanews.net

allyibc.com

alameda1876.com

artofdala.com

yukoidusp.xyz

steeldrumbandnearme.com

stonewedgetechnology.com

kentonai.com

macquarie-private.com

ddgwy.com

megagreenhousekits.com

descomplicaomarketing.com

inclusiverealtor.com

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/3348-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3348-20-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3348-24-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4004-31-0x00000000013C0000-0x00000000013EF000-memory.dmp	formbook

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	ORDEN DE COMPRA URGENTE pdf hjk.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 3196 set thread context of 3348	3196	ORDEN DE COMPRA URGENTE pdf hjk.exe	100
PID 3348 set thread context of 3532	3348	RegSvcs.exe	56
PID 3348 set thread context of 3532	3348	RegSvcs.exe	56
PID 4004 set thread context of 3532	4004	explorer.exe	56

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ORDEN DE COMPRA URGENTE pdf hjk.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4932	schtasks.exe

Suspicious behavior: EnumeratesProcesses 50 IoCs

pid	Process
3348	RegSvcs.exe
3348	RegSvcs.exe
3348	RegSvcs.exe
3348	RegSvcs.exe
3348	RegSvcs.exe
3348	RegSvcs.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe
4004	explorer.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
3348	RegSvcs.exe
3348	RegSvcs.exe
3348	RegSvcs.exe
3348	RegSvcs.exe
4004	explorer.exe
4004	explorer.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3348	RegSvcs.exe
Token: SeDebugPrivilege	4004	explorer.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3196 wrote to memory of 4932	3196	ORDEN DE COMPRA URGENTE pdf hjk.exe	97
PID 3196 wrote to memory of 4932	3196	ORDEN DE COMPRA URGENTE pdf hjk.exe	97
PID 3196 wrote to memory of 4932	3196	ORDEN DE COMPRA URGENTE pdf hjk.exe	97
PID 3196 wrote to memory of 3348	3196	ORDEN DE COMPRA URGENTE pdf hjk.exe	100
PID 3196 wrote to memory of 3348	3196	ORDEN DE COMPRA URGENTE pdf hjk.exe	100
PID 3196 wrote to memory of 3348	3196	ORDEN DE COMPRA URGENTE pdf hjk.exe	100
PID 3196 wrote to memory of 3348	3196	ORDEN DE COMPRA URGENTE pdf hjk.exe	100
PID 3196 wrote to memory of 3348	3196	ORDEN DE COMPRA URGENTE pdf hjk.exe	100
PID 3196 wrote to memory of 3348	3196	ORDEN DE COMPRA URGENTE pdf hjk.exe	100
PID 3532 wrote to memory of 4004	3532	Explorer.EXE	103
PID 3532 wrote to memory of 4004	3532	Explorer.EXE	103
PID 3532 wrote to memory of 4004	3532	Explorer.EXE	103
PID 4004 wrote to memory of 4808	4004	explorer.exe	104
PID 4004 wrote to memory of 4808	4004	explorer.exe	104
PID 4004 wrote to memory of 4808	4004	explorer.exe	104

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3532
- C:\Users\Admin\AppData\Local\Temp\ORDEN DE COMPRA URGENTE pdf hjk.exe
  "C:\Users\Admin\AppData\Local\Temp\ORDEN DE COMPRA URGENTE pdf hjk.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3196
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\IdOZUFpTFHmr" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3330.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4932
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "{path}"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3348
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:1972
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\SysWOW64\explorer.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:4004
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp3330.tmp

Filesize
1KB

MD5
97a2558dc153d5e58eb8b1bd15f32c8c

SHA1
9615be9733cc8be9cb505b38c7b8ca784997a369

SHA256
4c96121c062c996f8f7847d8cacd77ed97bfa3f00bd52af487e045265bd9c6ca

SHA512
24ead76c5b3f471901b0e54e1536c64a165479699507bccae9d5bf6561e18e4bc0bd2ceda2a7ab09137336800032ef9e4e9bd7001b58dc3a9f0c4b519d1928a3

Download Submit
memory/3196-17-0x00000000746F0000-0x0000000074EA0000-memory.dmp

Filesize
7.7MB

Download
memory/3196-2-0x00000000058F0000-0x0000000005E94000-memory.dmp

Filesize
5.6MB

Download
memory/3196-0-0x00000000746FE000-0x00000000746FF000-memory.dmp

Filesize
4KB

Download
memory/3196-4-0x0000000005480000-0x000000000551C000-memory.dmp

Filesize
624KB

Download
memory/3196-5-0x00000000746F0000-0x0000000074EA0000-memory.dmp

Filesize
7.7MB

Download
memory/3196-6-0x0000000005320000-0x000000000532A000-memory.dmp

Filesize
40KB

Download
memory/3196-7-0x00000000055A0000-0x00000000055C0000-memory.dmp

Filesize
128KB

Download
memory/3196-8-0x00000000746FE000-0x00000000746FF000-memory.dmp

Filesize
4KB

Download
memory/3196-9-0x00000000746F0000-0x0000000074EA0000-memory.dmp

Filesize
7.7MB

Download
memory/3196-10-0x00000000068B0000-0x0000000006938000-memory.dmp

Filesize
544KB

Download
memory/3196-11-0x0000000006030000-0x0000000006064000-memory.dmp

Filesize
208KB

Download
memory/3196-1-0x00000000008B0000-0x0000000000946000-memory.dmp

Filesize
600KB

Download
memory/3196-3-0x0000000005340000-0x00000000053D2000-memory.dmp

Filesize
584KB

Download
memory/3348-25-0x0000000001410000-0x0000000001424000-memory.dmp

Filesize
80KB

Download
memory/3348-24-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3348-21-0x0000000000F90000-0x0000000000FA4000-memory.dmp

Filesize
80KB

Download
memory/3348-20-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3348-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3348-18-0x0000000001440000-0x000000000178A000-memory.dmp

Filesize
3.3MB

Download
memory/3532-22-0x0000000008FD0000-0x0000000009170000-memory.dmp

Filesize
1.6MB

Download
memory/3532-36-0x00000000036F0000-0x00000000037F3000-memory.dmp

Filesize
1.0MB

Download
memory/3532-26-0x0000000003300000-0x00000000033CC000-memory.dmp

Filesize
816KB

Download
memory/3532-32-0x0000000003300000-0x00000000033CC000-memory.dmp

Filesize
816KB

Download
memory/3532-27-0x0000000008FD0000-0x0000000009170000-memory.dmp

Filesize
1.6MB

Download
memory/4004-28-0x0000000000F50000-0x0000000001383000-memory.dmp

Filesize
4.2MB

Download
memory/4004-30-0x0000000000F50000-0x0000000001383000-memory.dmp

Filesize
4.2MB

Download
memory/4004-31-0x00000000013C0000-0x00000000013EF000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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