formbook | 3c49acaa8cecf8350267f1be98a72b3c3cc0ab537c0ddb99b20cb6d7e65b916b

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03-12-2024 13:06

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General

Target

KvG1NAXkgp9PxQb.exe
Size

694KB
MD5

cf4274ca7587295567c667da6e1bd0e0
SHA1

1e6f09bbb822019d3311f317688756d48d0d931a
SHA256

3c49acaa8cecf8350267f1be98a72b3c3cc0ab537c0ddb99b20cb6d7e65b916b
SHA512

c201dfabb87ef9252fe1124dc46bf3a6a0da685c87047e53a2d103c9f40c1992c245c168758c6286727150cc71ec20536945279a5d3360cf5ce8ced27ba324f5
SSDEEP

12288:diIR4R52J+XtONxhwH7L8US0zA50ziWjBoAOIFSDhmAfUq/Wy9jwW7i5IjlMIR:diIeeDNwH7o+cW9oAbtAMq+y9GI

Score

10^/10

formbook ax19 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ax19

Decoy

nmarklun.biz

eadithere.net

oytromcm.net

6gu536d.shop

hysicsjunction.online

esistivitysensors.net

ealthcare-software-53940.bond

tupid-edsee.cyou

614.lat

agmart.store

lothesthesale.store

ranopen.info

c1v.lat

owflyingbugs.online

undumimmobilien.net

nline-advertising-57252.bond

orktyper.net

kten10.shop

sadeaguia.net

ouseofnormal.party

Signatures

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

Formbook payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4796-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4796-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/708-22-0x0000000000D90000-0x0000000000DBF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

KvG1NAXkgp9PxQb.exeKvG1NAXkgp9PxQb.exeraserver.exe

description	pid	Process	procid_target
PID 1624 set thread context of 4796	1624	KvG1NAXkgp9PxQb.exe	98
PID 4796 set thread context of 3444	4796	KvG1NAXkgp9PxQb.exe	56
PID 708 set thread context of 3444	708	raserver.exe	56

System Location Discovery: System Language Discovery 1 TTPs 3 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

Processes:

KvG1NAXkgp9PxQb.exeraserver.execmd.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	KvG1NAXkgp9PxQb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	raserver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 52 IoCs

Processes:

KvG1NAXkgp9PxQb.exeraserver.exe

pid	Process
4796	KvG1NAXkgp9PxQb.exe
4796	KvG1NAXkgp9PxQb.exe
4796	KvG1NAXkgp9PxQb.exe
4796	KvG1NAXkgp9PxQb.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe
708	raserver.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

KvG1NAXkgp9PxQb.exeraserver.exe

pid	Process
4796	KvG1NAXkgp9PxQb.exe
4796	KvG1NAXkgp9PxQb.exe
4796	KvG1NAXkgp9PxQb.exe
708	raserver.exe
708	raserver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

KvG1NAXkgp9PxQb.exeraserver.exe

description	pid	Process
Token: SeDebugPrivilege	4796	KvG1NAXkgp9PxQb.exe
Token: SeDebugPrivilege	708	raserver.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

KvG1NAXkgp9PxQb.exeExplorer.EXEraserver.exe

description	pid	Process	procid_target
PID 1624 wrote to memory of 4796	1624	KvG1NAXkgp9PxQb.exe	98
PID 1624 wrote to memory of 4796	1624	KvG1NAXkgp9PxQb.exe	98
PID 1624 wrote to memory of 4796	1624	KvG1NAXkgp9PxQb.exe	98
PID 1624 wrote to memory of 4796	1624	KvG1NAXkgp9PxQb.exe	98
PID 1624 wrote to memory of 4796	1624	KvG1NAXkgp9PxQb.exe	98
PID 1624 wrote to memory of 4796	1624	KvG1NAXkgp9PxQb.exe	98
PID 3444 wrote to memory of 708	3444	Explorer.EXE	99
PID 3444 wrote to memory of 708	3444	Explorer.EXE	99
PID 3444 wrote to memory of 708	3444	Explorer.EXE	99
PID 708 wrote to memory of 3500	708	raserver.exe	101
PID 708 wrote to memory of 3500	708	raserver.exe	101
PID 708 wrote to memory of 3500	708	raserver.exe	101

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3444
- C:\Users\Admin\AppData\Local\Temp\KvG1NAXkgp9PxQb.exe
  "C:\Users\Admin\AppData\Local\Temp\KvG1NAXkgp9PxQb.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1624
- - C:\Users\Admin\AppData\Local\Temp\KvG1NAXkgp9PxQb.exe
    "C:\Users\Admin\AppData\Local\Temp\KvG1NAXkgp9PxQb.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4796
- C:\Windows\SysWOW64\raserver.exe
  "C:\Windows\SysWOW64\raserver.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:708
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\KvG1NAXkgp9PxQb.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3500

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

Replay Monitor

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Downloads

memory/708-19-0x0000000000930000-0x000000000094F000-memory.dmp

Filesize
124KB

Download
memory/708-22-0x0000000000D90000-0x0000000000DBF000-memory.dmp

Filesize
188KB

Download
memory/708-21-0x0000000000930000-0x000000000094F000-memory.dmp

Filesize
124KB

Download
memory/1624-6-0x0000000007440000-0x0000000007458000-memory.dmp

Filesize
96KB

Download
memory/1624-1-0x0000000000290000-0x0000000000344000-memory.dmp

Filesize
720KB

Download
memory/1624-5-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/1624-0-0x00000000749CE000-0x00000000749CF000-memory.dmp

Filesize
4KB

Download
memory/1624-7-0x00000000749CE000-0x00000000749CF000-memory.dmp

Filesize
4KB

Download
memory/1624-8-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/1624-9-0x0000000008540000-0x00000000085B8000-memory.dmp

Filesize
480KB

Download
memory/1624-10-0x0000000008660000-0x00000000086FC000-memory.dmp

Filesize
624KB

Download
memory/1624-4-0x00000000047F0000-0x00000000047FA000-memory.dmp

Filesize
40KB

Download
memory/1624-13-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/1624-2-0x0000000007760000-0x0000000007D04000-memory.dmp

Filesize
5.6MB

Download
memory/1624-3-0x0000000007250000-0x00000000072E2000-memory.dmp

Filesize
584KB

Download
memory/3444-18-0x0000000002610000-0x00000000026D6000-memory.dmp

Filesize
792KB

Download
memory/3444-23-0x0000000002610000-0x00000000026D6000-memory.dmp

Filesize
792KB

Download
memory/3444-27-0x00000000080C0000-0x0000000008207000-memory.dmp

Filesize
1.3MB

Download
memory/3444-28-0x00000000080C0000-0x0000000008207000-memory.dmp

Filesize
1.3MB

Download
memory/3444-30-0x00000000080C0000-0x0000000008207000-memory.dmp

Filesize
1.3MB

Download
memory/4796-17-0x0000000001180000-0x0000000001194000-memory.dmp

Filesize
80KB

Download
memory/4796-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4796-14-0x0000000001630000-0x000000000197A000-memory.dmp

Filesize
3.3MB

Download
memory/4796-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download