formbook | efb36f66d3f21331fe2369f9075789016f7f8df19a78e1011ad0b81e6b2a8e73

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24-12-2024 17:32

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General

Target

3e4ff94c4eb0c93bfd6a2bb1b9b46f6b20c139ead253e717ce295601c52840ba.exe
Size

563KB
MD5

34a990cb2c38d233203ddc44c9e8dfea
SHA1

e9af92869688a0e66e450e20107605968804f6b9
SHA256

3e4ff94c4eb0c93bfd6a2bb1b9b46f6b20c139ead253e717ce295601c52840ba
SHA512

b979cc4593359ccf63f180694e8903e5690730f609eb200a115f44f25dd4b48ac8faad3e2dfdd8eb607b17b2ee9a3f02268bbd0fec46353cea9cbf32c4f602c3
SSDEEP

12288:jWHCM2K4Caq4wLpCGOHYZIGXDbIbK2VF1GueSRBKvf:Z3Caq4142ebL2D1GueSRBK

Score

10^/10

formbook r3nq discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

r3nq

Decoy

sausalitosoundstudios.com

whiteplainstaxico.com

kuy.company

retailraccoon.com

justinbuy.com

xn--80aaplnpvncoz1e.xn--p1acf

rooftoorder.info

kecaimachine.com

agdiscgolfshop.com

slothino-freispiele.com

nevadahempfarmers.com

noo4.com

nemetzade.com

williamcareyuniversity.online

zhongcarrie.com

danmcneill.com

psm-gen.com

betaalplatform.club

vicentcalabuigstudio.com

theriver-round.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/3344-12-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4228 set thread context of 3344	4228	3e4ff94c4eb0c93bfd6a2bb1b9b46f6b20c139ead253e717ce295601c52840ba.exe	91

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	3e4ff94c4eb0c93bfd6a2bb1b9b46f6b20c139ead253e717ce295601c52840ba.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3344	3e4ff94c4eb0c93bfd6a2bb1b9b46f6b20c139ead253e717ce295601c52840ba.exe
3344	3e4ff94c4eb0c93bfd6a2bb1b9b46f6b20c139ead253e717ce295601c52840ba.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4228 wrote to memory of 3344	4228	3e4ff94c4eb0c93bfd6a2bb1b9b46f6b20c139ead253e717ce295601c52840ba.exe	91
PID 4228 wrote to memory of 3344	4228	3e4ff94c4eb0c93bfd6a2bb1b9b46f6b20c139ead253e717ce295601c52840ba.exe	91
PID 4228 wrote to memory of 3344	4228	3e4ff94c4eb0c93bfd6a2bb1b9b46f6b20c139ead253e717ce295601c52840ba.exe	91
PID 4228 wrote to memory of 3344	4228	3e4ff94c4eb0c93bfd6a2bb1b9b46f6b20c139ead253e717ce295601c52840ba.exe	91
PID 4228 wrote to memory of 3344	4228	3e4ff94c4eb0c93bfd6a2bb1b9b46f6b20c139ead253e717ce295601c52840ba.exe	91
PID 4228 wrote to memory of 3344	4228	3e4ff94c4eb0c93bfd6a2bb1b9b46f6b20c139ead253e717ce295601c52840ba.exe	91

C:\Users\Admin\AppData\Local\Temp\3e4ff94c4eb0c93bfd6a2bb1b9b46f6b20c139ead253e717ce295601c52840ba.exe
"C:\Users\Admin\AppData\Local\Temp\3e4ff94c4eb0c93bfd6a2bb1b9b46f6b20c139ead253e717ce295601c52840ba.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4228
- C:\Users\Admin\AppData\Local\Temp\3e4ff94c4eb0c93bfd6a2bb1b9b46f6b20c139ead253e717ce295601c52840ba.exe
  "C:\Users\Admin\AppData\Local\Temp\3e4ff94c4eb0c93bfd6a2bb1b9b46f6b20c139ead253e717ce295601c52840ba.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3344

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3344-12-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3344-15-0x0000000001120000-0x000000000146A000-memory.dmp

Filesize
3.3MB

Download
memory/4228-6-0x0000000005120000-0x00000000051BC000-memory.dmp

Filesize
624KB

Download
memory/4228-3-0x0000000004E20000-0x0000000004EB2000-memory.dmp

Filesize
584KB

Download
memory/4228-4-0x0000000074CA0000-0x0000000075450000-memory.dmp

Filesize
7.7MB

Download
memory/4228-5-0x0000000004F00000-0x0000000004F0A000-memory.dmp

Filesize
40KB

Download
memory/4228-0-0x0000000074CAE000-0x0000000074CAF000-memory.dmp

Filesize
4KB

Download
memory/4228-7-0x0000000004F10000-0x0000000004F1E000-memory.dmp

Filesize
56KB

Download
memory/4228-8-0x0000000074CAE000-0x0000000074CAF000-memory.dmp

Filesize
4KB

Download
memory/4228-9-0x0000000074CA0000-0x0000000075450000-memory.dmp

Filesize
7.7MB

Download
memory/4228-10-0x0000000005D80000-0x0000000005DE8000-memory.dmp

Filesize
416KB

Download
memory/4228-11-0x0000000008310000-0x0000000008344000-memory.dmp

Filesize
208KB

Download
memory/4228-2-0x0000000005490000-0x0000000005A34000-memory.dmp

Filesize
5.6MB

Download
memory/4228-14-0x0000000074CA0000-0x0000000075450000-memory.dmp

Filesize
7.7MB

Download
memory/4228-1-0x00000000003B0000-0x0000000000444000-memory.dmp

Filesize
592KB

Download