formbook | 679f0c6828ea6a0a111c4ffc91bbabe5a3fcd6b646ab57d5040699d1e0e0aadd

General

Target

Euro40000order.exe
Size

750KB
MD5

43d33d32b8a2dfcd192f568f297c7d07
SHA1

989d2ec220dfe0c39dfc97f824c6916c7214f380
SHA256

886bbd99a81dac59ab10515a0595fc8c32753c1fe929c4558157b17085ed5b58
SHA512

4eeb5f84ffc3223bb73334e10449c31f6229eee8a823346d11e4c59cc324d237ea0e483e1c04d0c7fcba0e4a13138e6802ce50aaf786b5296c0e657e1a13c22c
SSDEEP

6144:6u7EzoMvj6R3GPPd2fj0NXMvKTgy1PI8dPPYwztLdW+9yp1zqv5mZzhw181LfCS0:6uIbMedQ2JG6Ywzq9OeMP23G

Score

10^/10

formbook m52 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

3.9

Campaign

m52

Decoy

v7536.com

jvvieira.com

woodenspoonbakehouse.com

exdij9.com

nadimkka.com

studentcoins.net

bitcoinmom.info

bxdycgm.com

jepkvrg.com

bitpu.net

autokredit-ohne-schufa.info

pvo.direct

lawyervideonetwork.com

n2pcc.com

fauxtoblonde.net

guayansistsfromm.win

wwwjsh100.com

run2build.com

sscmc.win

intogroup.win

Signatures

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

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral1/memory/2736-10-0x0000000000400000-0x000000000042A000-memory.dmp	formbook
behavioral1/memory/2736-14-0x0000000000400000-0x000000000042A000-memory.dmp	formbook

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2692 set thread context of 2736	2692	Euro40000order.exe	30
PID 2736 set thread context of 1424	2736	vbc.exe	21
PID 2508 set thread context of 1424	2508	chkdsk.exe	21

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chkdsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Euro40000order.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 30 IoCs

pid	Process
2736	vbc.exe
2736	vbc.exe
2508	chkdsk.exe
2508	chkdsk.exe
2508	chkdsk.exe
2508	chkdsk.exe
2508	chkdsk.exe
2508	chkdsk.exe
2508	chkdsk.exe
2508	chkdsk.exe
2508	chkdsk.exe
2508	chkdsk.exe
2508	chkdsk.exe
2508	chkdsk.exe
2508	chkdsk.exe
2508	chkdsk.exe
2508	chkdsk.exe
2508	chkdsk.exe
2508	chkdsk.exe
2508	chkdsk.exe
2508	chkdsk.exe
2508	chkdsk.exe
2508	chkdsk.exe
2508	chkdsk.exe
2508	chkdsk.exe
2508	chkdsk.exe
2508	chkdsk.exe
2508	chkdsk.exe
2508	chkdsk.exe
2508	chkdsk.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2736	vbc.exe
2736	vbc.exe
2736	vbc.exe
2508	chkdsk.exe
2508	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2736	vbc.exe
Token: SeDebugPrivilege	2508	chkdsk.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 2736	2692	Euro40000order.exe	30
PID 2692 wrote to memory of 2736	2692	Euro40000order.exe	30
PID 2692 wrote to memory of 2736	2692	Euro40000order.exe	30
PID 2692 wrote to memory of 2736	2692	Euro40000order.exe	30
PID 2692 wrote to memory of 2736	2692	Euro40000order.exe	30
PID 2692 wrote to memory of 2736	2692	Euro40000order.exe	30
PID 2692 wrote to memory of 2736	2692	Euro40000order.exe	30
PID 1424 wrote to memory of 2508	1424	Explorer.EXE	31
PID 1424 wrote to memory of 2508	1424	Explorer.EXE	31
PID 1424 wrote to memory of 2508	1424	Explorer.EXE	31
PID 1424 wrote to memory of 2508	1424	Explorer.EXE	31
PID 2508 wrote to memory of 2540	2508	chkdsk.exe	32
PID 2508 wrote to memory of 2540	2508	chkdsk.exe	32
PID 2508 wrote to memory of 2540	2508	chkdsk.exe	32
PID 2508 wrote to memory of 2540	2508	chkdsk.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1424
- C:\Users\Admin\AppData\Local\Temp\Euro40000order.exe
  "C:\Users\Admin\AppData\Local\Temp\Euro40000order.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2692
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2736
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2508
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2540

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scripting

1

T1064

Persistence

Privilege Escalation

Defense Evasion

Scripting

1

T1064

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1424-17-0x0000000004EC0000-0x0000000005024000-memory.dmp

Filesize
1.4MB

Download
memory/1424-22-0x0000000003A40000-0x0000000003C40000-memory.dmp

Filesize
2.0MB

Download
memory/1424-20-0x0000000004EC0000-0x0000000005024000-memory.dmp

Filesize
1.4MB

Download
memory/1424-16-0x0000000002D50000-0x0000000002E50000-memory.dmp

Filesize
1024KB

Download
memory/2508-19-0x0000000000120000-0x0000000000127000-memory.dmp

Filesize
28KB

Download
memory/2508-18-0x0000000000120000-0x0000000000127000-memory.dmp

Filesize
28KB

Download
memory/2692-1-0x00000000008B0000-0x000000000095A000-memory.dmp

Filesize
680KB

Download
memory/2692-2-0x0000000073F60000-0x000000007464E000-memory.dmp

Filesize
6.9MB

Download
memory/2692-3-0x00000000007B0000-0x00000000007F2000-memory.dmp

Filesize
264KB

Download
memory/2692-4-0x0000000000790000-0x00000000007A4000-memory.dmp

Filesize
80KB

Download
memory/2692-0-0x0000000073F6E000-0x0000000073F6F000-memory.dmp

Filesize
4KB

Download
memory/2692-11-0x0000000073F60000-0x000000007464E000-memory.dmp

Filesize
6.9MB

Download
memory/2736-9-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2736-14-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/2736-15-0x0000000000350000-0x0000000000364000-memory.dmp

Filesize
80KB

Download
memory/2736-12-0x0000000000730000-0x0000000000A33000-memory.dmp

Filesize
3.0MB

Download
memory/2736-10-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/2736-7-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/2736-6-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download

Analysis

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