formbook | 46ebc69cda5d6bc3414f2cd289c8a703d42ca315aaf1374ffe142d53f9ea0405

Analysis

max time kernel
150s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
24-09-2024 12:59

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General

Target

SHIPPING DOCUMENT 38104952200.exe
Size

2.7MB
MD5

70bf479581aa6eb68e18ef6974e56c54
SHA1

e38ea6802d5156f47a2cef8d90d4d061f1ed357c
SHA256

46ebc69cda5d6bc3414f2cd289c8a703d42ca315aaf1374ffe142d53f9ea0405
SHA512

3fabeb7d802e3cb3c70f6e33a50bacec9961562a2c0a7bcf40f2ac4c83c3441bd1da7f345585e0f3846e2b723835c0e268b814f3f700693fa99b570eab1a844b
SSDEEP

12288:nIMbZQ7r5sNV24H+7N4hXY4/QhxtPSSJON+TwaX47V:dOr5sG3ihXY4/gxt9wQkp

Score

10^/10

formbook e62s discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

e62s

Decoy

ellinksa.shop

uckyspinph.xyz

owdark.net

arriage-therapy-72241.bond

w7ijko4rv4p97b.top

heirbuzzwords.buzz

aspart.shop

ctivemail5-kagoya-com.info

shacertification9.shop

zitcd65k3.buzz

llkosoi.info

ru8.info

rhgtrdjdjykyetrdjftd.buzz

yschoollist.kiwi

oftfolio.online

rograma-de-almacen-2.online

oudoarms.top

mwquas.xyz

orjagaucha.website

nlinechat-mh.online

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/216-4-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/216-7-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3628-16-0x0000000000170000-0x000000000019F000-memory.dmp	formbook
behavioral2/memory/3628-18-0x0000000000170000-0x000000000019F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4184 set thread context of 216	4184	SHIPPING DOCUMENT 38104952200.exe	82
PID 216 set thread context of 3420	216	regasm.exe	56
PID 3628 set thread context of 3420	3628	msiexec.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

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

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4184	SHIPPING DOCUMENT 38104952200.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
216	regasm.exe
216	regasm.exe
216	regasm.exe
216	regasm.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe
3628	msiexec.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
216	regasm.exe
216	regasm.exe
216	regasm.exe
3628	msiexec.exe
3628	msiexec.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	216	regasm.exe
Token: SeShutdownPrivilege	3420	Explorer.EXE
Token: SeCreatePagefilePrivilege	3420	Explorer.EXE
Token: SeDebugPrivilege	3628	msiexec.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
3420	Explorer.EXE
3420	Explorer.EXE
3420	Explorer.EXE

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
3420	Explorer.EXE
3420	Explorer.EXE
3420	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4184 wrote to memory of 216	4184	SHIPPING DOCUMENT 38104952200.exe	82
PID 4184 wrote to memory of 216	4184	SHIPPING DOCUMENT 38104952200.exe	82
PID 4184 wrote to memory of 216	4184	SHIPPING DOCUMENT 38104952200.exe	82
PID 4184 wrote to memory of 216	4184	SHIPPING DOCUMENT 38104952200.exe	82
PID 4184 wrote to memory of 216	4184	SHIPPING DOCUMENT 38104952200.exe	82
PID 4184 wrote to memory of 216	4184	SHIPPING DOCUMENT 38104952200.exe	82
PID 3420 wrote to memory of 3628	3420	Explorer.EXE	86
PID 3420 wrote to memory of 3628	3420	Explorer.EXE	86
PID 3420 wrote to memory of 3628	3420	Explorer.EXE	86
PID 3628 wrote to memory of 392	3628	msiexec.exe	87
PID 3628 wrote to memory of 392	3628	msiexec.exe	87
PID 3628 wrote to memory of 392	3628	msiexec.exe	87

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3420
- C:\Users\Admin\AppData\Local\Temp\SHIPPING DOCUMENT 38104952200.exe
  "C:\Users\Admin\AppData\Local\Temp\SHIPPING DOCUMENT 38104952200.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4184
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:216
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.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:3628
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:392

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

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/216-4-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/216-5-0x00000000027A0000-0x0000000002AEA000-memory.dmp

Filesize
3.3MB

Download
memory/216-8-0x0000000000BD0000-0x0000000000BE5000-memory.dmp

Filesize
84KB

Download
memory/216-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3420-19-0x0000000002790000-0x00000000028AF000-memory.dmp

Filesize
1.1MB

Download
memory/3420-27-0x0000000002980000-0x0000000002A2A000-memory.dmp

Filesize
680KB

Download
memory/3420-25-0x0000000002980000-0x0000000002A2A000-memory.dmp

Filesize
680KB

Download
memory/3420-24-0x0000000002980000-0x0000000002A2A000-memory.dmp

Filesize
680KB

Download
memory/3420-9-0x0000000002790000-0x00000000028AF000-memory.dmp

Filesize
1.1MB

Download
memory/3628-11-0x0000000000F30000-0x0000000000F42000-memory.dmp

Filesize
72KB

Download
memory/3628-13-0x0000000000F30000-0x0000000000F42000-memory.dmp

Filesize
72KB

Download
memory/3628-15-0x0000000000F30000-0x0000000000F42000-memory.dmp

Filesize
72KB

Download
memory/3628-16-0x0000000000170000-0x000000000019F000-memory.dmp

Filesize
188KB

Download
memory/3628-17-0x0000000002360000-0x00000000026AA000-memory.dmp

Filesize
3.3MB

Download
memory/3628-18-0x0000000000170000-0x000000000019F000-memory.dmp

Filesize
188KB

Download
memory/3628-21-0x0000000000CA0000-0x0000000000D34000-memory.dmp

Filesize
592KB

Download
memory/4184-1-0x000001F9C99C0000-0x000001F9C99CA000-memory.dmp

Filesize
40KB

Download
memory/4184-10-0x00007FFCA0F10000-0x00007FFCA19D1000-memory.dmp

Filesize
10.8MB

Download
memory/4184-3-0x000001F9E3F80000-0x000001F9E4006000-memory.dmp

Filesize
536KB

Download
memory/4184-2-0x00007FFCA0F10000-0x00007FFCA19D1000-memory.dmp

Filesize
10.8MB

Download
memory/4184-0-0x00007FFCA0F13000-0x00007FFCA0F15000-memory.dmp

Filesize
8KB

Download