formbook | 03fa43931af3b6313fdba4fddae1924a85fbf0345fbf238f73d9ddc282598fe0

General

Target

03fa43931af3b6313fdba4fddae1924a85fbf0345fbf238f73d9ddc282598fe0.exe
Size

454KB
MD5

32ecacb78c39219a4aad99e0849541ca
SHA1

8f1b2f77412bdeb16f9d58bea70dd52610cfc179
SHA256

03fa43931af3b6313fdba4fddae1924a85fbf0345fbf238f73d9ddc282598fe0
SHA512

392879431476b4b095514ed8a4f4536cd84ee47cd09e4cb8d81d59920dbc30cb737834caa5ed9762dfc874a07efd40a25a41da15c23369c5de04d80d2cc26a30
SSDEEP

6144:RT6Uqd2GhN5TebaT+hbE8BuXQ7NwHeOwvGOYLtXy00ynAWGyAu4mpwcFCLFjuShO:RmUi2iNtwBE0YOYLt7WDuZmo4juCueW9

Score

10^/10

formbook u1bs discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

u1bs

Decoy

ln-safe-keepingmisva4.xyz

rtfh.xyz

awolin.link

metadlf.com

cardboardcasual.com

psicoterapiahablada.com

spaminator.xyz

hnjqzl.top

dentalyinovasi.site

biosynblas.com

zvyk.store

shreevishwakarmaservices.com

showersplash.com

norbert-roth.com

londoncapitaltraders.com

istanbuldonerkebabheroncity.com

realdiscountsnow.com

marlinplumbingwnc.com

magazinadziavane.com

qantv.com

Signatures

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

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/1820-16-0x0000000000400000-0x000000000042F000-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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	03fa43931af3b6313fdba4fddae1924a85fbf0345fbf238f73d9ddc282598fe0.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1984 set thread context of 1820	1984	03fa43931af3b6313fdba4fddae1924a85fbf0345fbf238f73d9ddc282598fe0.exe	101

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 2 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	03fa43931af3b6313fdba4fddae1924a85fbf0345fbf238f73d9ddc282598fe0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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
1088	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1820	03fa43931af3b6313fdba4fddae1924a85fbf0345fbf238f73d9ddc282598fe0.exe
1820	03fa43931af3b6313fdba4fddae1924a85fbf0345fbf238f73d9ddc282598fe0.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 1088	1984	03fa43931af3b6313fdba4fddae1924a85fbf0345fbf238f73d9ddc282598fe0.exe	99
PID 1984 wrote to memory of 1088	1984	03fa43931af3b6313fdba4fddae1924a85fbf0345fbf238f73d9ddc282598fe0.exe	99
PID 1984 wrote to memory of 1088	1984	03fa43931af3b6313fdba4fddae1924a85fbf0345fbf238f73d9ddc282598fe0.exe	99
PID 1984 wrote to memory of 1820	1984	03fa43931af3b6313fdba4fddae1924a85fbf0345fbf238f73d9ddc282598fe0.exe	101
PID 1984 wrote to memory of 1820	1984	03fa43931af3b6313fdba4fddae1924a85fbf0345fbf238f73d9ddc282598fe0.exe	101
PID 1984 wrote to memory of 1820	1984	03fa43931af3b6313fdba4fddae1924a85fbf0345fbf238f73d9ddc282598fe0.exe	101
PID 1984 wrote to memory of 1820	1984	03fa43931af3b6313fdba4fddae1924a85fbf0345fbf238f73d9ddc282598fe0.exe	101
PID 1984 wrote to memory of 1820	1984	03fa43931af3b6313fdba4fddae1924a85fbf0345fbf238f73d9ddc282598fe0.exe	101
PID 1984 wrote to memory of 1820	1984	03fa43931af3b6313fdba4fddae1924a85fbf0345fbf238f73d9ddc282598fe0.exe	101

C:\Users\Admin\AppData\Local\Temp\03fa43931af3b6313fdba4fddae1924a85fbf0345fbf238f73d9ddc282598fe0.exe
"C:\Users\Admin\AppData\Local\Temp\03fa43931af3b6313fdba4fddae1924a85fbf0345fbf238f73d9ddc282598fe0.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1984
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YAeSiES" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1A78.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1088
- C:\Users\Admin\AppData\Local\Temp\03fa43931af3b6313fdba4fddae1924a85fbf0345fbf238f73d9ddc282598fe0.exe
  "C:\Users\Admin\AppData\Local\Temp\03fa43931af3b6313fdba4fddae1924a85fbf0345fbf238f73d9ddc282598fe0.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1820

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

memory/1820-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1820-19-0x0000000001B60000-0x0000000001EAA000-memory.dmp

Filesize
3.3MB

Download
memory/1984-6-0x0000000005C00000-0x0000000005C0E000-memory.dmp

Filesize
56KB

Download
memory/1984-3-0x0000000005880000-0x0000000005912000-memory.dmp

Filesize
584KB

Download
memory/1984-4-0x0000000005A10000-0x0000000005A1A000-memory.dmp

Filesize
40KB

Download
memory/1984-5-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/1984-0-0x0000000074EAE000-0x0000000074EAF000-memory.dmp

Filesize
4KB

Download
memory/1984-7-0x0000000074EAE000-0x0000000074EAF000-memory.dmp

Filesize
4KB

Download
memory/1984-8-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/1984-9-0x0000000006680000-0x000000000671C000-memory.dmp

Filesize
624KB

Download
memory/1984-10-0x0000000006630000-0x0000000006688000-memory.dmp

Filesize
352KB

Download
memory/1984-2-0x0000000005E30000-0x00000000063D4000-memory.dmp

Filesize
5.6MB

Download
memory/1984-18-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/1984-1-0x0000000000E00000-0x0000000000E78000-memory.dmp

Filesize
480KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads