formbook | 19437bcdb8ab50cd8ff35638dfec0a825ebc54eec82da2ad973052ee60ca5734

General

Target

370b7d8656ddabeb6669b24da32cd047ebbd977efce6047bd26e8326a98c768e.exe
Size

506KB
MD5

8e3ffb0282c016ce500a81a4e7a5f13e
SHA1

3f0acf30be8406bc451bf43ad5a704c066bd89b5
SHA256

370b7d8656ddabeb6669b24da32cd047ebbd977efce6047bd26e8326a98c768e
SHA512

ea9cf7dd7afdab45021e88d3f258d6d38d91b9952afbc8b7365e5d47fb37008b270a7e0dee0c046c14c035f0b1a3f88c45ce262f895bc420be8dace52eda28c0
SSDEEP

12288:4CztCniVGFCL7EZTo7ZGSki2YmrgTPVrBJNQqI:4CpC5CL4ZkNGS+Yoqx7NQT

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 payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/3600-16-0x0000000000400000-0x000000000042F000-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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	370b7d8656ddabeb6669b24da32cd047ebbd977efce6047bd26e8326a98c768e.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2536 set thread context of 3600	2536	370b7d8656ddabeb6669b24da32cd047ebbd977efce6047bd26e8326a98c768e.exe	96

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	370b7d8656ddabeb6669b24da32cd047ebbd977efce6047bd26e8326a98c768e.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
2496	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3600	370b7d8656ddabeb6669b24da32cd047ebbd977efce6047bd26e8326a98c768e.exe
3600	370b7d8656ddabeb6669b24da32cd047ebbd977efce6047bd26e8326a98c768e.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2536 wrote to memory of 2496	2536	370b7d8656ddabeb6669b24da32cd047ebbd977efce6047bd26e8326a98c768e.exe	95
PID 2536 wrote to memory of 2496	2536	370b7d8656ddabeb6669b24da32cd047ebbd977efce6047bd26e8326a98c768e.exe	95
PID 2536 wrote to memory of 2496	2536	370b7d8656ddabeb6669b24da32cd047ebbd977efce6047bd26e8326a98c768e.exe	95
PID 2536 wrote to memory of 3600	2536	370b7d8656ddabeb6669b24da32cd047ebbd977efce6047bd26e8326a98c768e.exe	96
PID 2536 wrote to memory of 3600	2536	370b7d8656ddabeb6669b24da32cd047ebbd977efce6047bd26e8326a98c768e.exe	96
PID 2536 wrote to memory of 3600	2536	370b7d8656ddabeb6669b24da32cd047ebbd977efce6047bd26e8326a98c768e.exe	96
PID 2536 wrote to memory of 3600	2536	370b7d8656ddabeb6669b24da32cd047ebbd977efce6047bd26e8326a98c768e.exe	96
PID 2536 wrote to memory of 3600	2536	370b7d8656ddabeb6669b24da32cd047ebbd977efce6047bd26e8326a98c768e.exe	96
PID 2536 wrote to memory of 3600	2536	370b7d8656ddabeb6669b24da32cd047ebbd977efce6047bd26e8326a98c768e.exe	96

C:\Users\Admin\AppData\Local\Temp\370b7d8656ddabeb6669b24da32cd047ebbd977efce6047bd26e8326a98c768e.exe
"C:\Users\Admin\AppData\Local\Temp\370b7d8656ddabeb6669b24da32cd047ebbd977efce6047bd26e8326a98c768e.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2536
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FlmzgpptIOIuw" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEB1.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2496
- C:\Users\Admin\AppData\Local\Temp\370b7d8656ddabeb6669b24da32cd047ebbd977efce6047bd26e8326a98c768e.exe
  "C:\Users\Admin\AppData\Local\Temp\370b7d8656ddabeb6669b24da32cd047ebbd977efce6047bd26e8326a98c768e.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3600

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/2536-6-0x00000000082A0000-0x00000000082AE000-memory.dmp

Filesize
56KB

Download
memory/2536-0-0x0000000074B0E000-0x0000000074B0F000-memory.dmp

Filesize
4KB

Download
memory/2536-2-0x0000000008300000-0x00000000088A4000-memory.dmp

Filesize
5.6MB

Download
memory/2536-3-0x0000000007DF0000-0x0000000007E82000-memory.dmp

Filesize
584KB

Download
memory/2536-4-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/2536-5-0x00000000032C0000-0x00000000032CA000-memory.dmp

Filesize
40KB

Download
memory/2536-1-0x0000000000E80000-0x0000000000F04000-memory.dmp

Filesize
528KB

Download
memory/2536-7-0x0000000074B0E000-0x0000000074B0F000-memory.dmp

Filesize
4KB

Download
memory/2536-10-0x00000000093F0000-0x0000000009448000-memory.dmp

Filesize
352KB

Download
memory/2536-9-0x0000000009350000-0x00000000093EC000-memory.dmp

Filesize
624KB

Download
memory/2536-8-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/2536-18-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/3600-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3600-19-0x0000000000F10000-0x000000000125A000-memory.dmp

Filesize
3.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads