formbook | 90c4a79982a1f7b075a45d7bc7d23b5e0ca8ee5348b8762bb301364de22ad33c

Analysis

max time kernel
145s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
27-09-2024 11:27

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General

Target

1.exe
Size

1.9MB
MD5

a68c8ccf6f70c4622934f393c98ae260
SHA1

27bae542d40db10cd929f2929e10b1c3b601d2dd
SHA256

90c4a79982a1f7b075a45d7bc7d23b5e0ca8ee5348b8762bb301364de22ad33c
SHA512

6caef4118a743e72c979bc33fdb06d055fb80ad0a8a5428bcce511cb0754d404d7aa3a5821941f03c2dcbfd04dcf83f33cb7b69ce0233aef014fac029025e233
SSDEEP

24576:DEx18OfetnSwHwd1rWKLrcpSgZaUZflrGelKNLJygCF:

Score

10^/10

formbook e62s discovery persistence 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

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 3472 created 3456	3472	1.exe	56

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral2/memory/1684-1093-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1684-1097-0x0000000000400000-0x000000000042F000-memory.dmp	formbook

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Lnadr = "C:\\Users\\Admin\\AppData\\Roaming\\Lnadr.exe"	1.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3472 set thread context of 1684	3472	1.exe	83
PID 1684 set thread context of 3456	1684	InstallUtil.exe	56
PID 2920 set thread context of 3456	2920	mstsc.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	mstsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3472	1.exe
3472	1.exe
3472	1.exe
3472	1.exe
1684	InstallUtil.exe
1684	InstallUtil.exe
1684	InstallUtil.exe
1684	InstallUtil.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe
2920	mstsc.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1684	InstallUtil.exe
1684	InstallUtil.exe
1684	InstallUtil.exe
2920	mstsc.exe
2920	mstsc.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3472	1.exe
Token: SeDebugPrivilege	3472	1.exe
Token: SeDebugPrivilege	1684	InstallUtil.exe
Token: SeDebugPrivilege	2920	mstsc.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3472 wrote to memory of 1684	3472	1.exe	83
PID 3472 wrote to memory of 1684	3472	1.exe	83
PID 3472 wrote to memory of 1684	3472	1.exe	83
PID 3472 wrote to memory of 1684	3472	1.exe	83
PID 3472 wrote to memory of 1684	3472	1.exe	83
PID 3472 wrote to memory of 1684	3472	1.exe	83
PID 3456 wrote to memory of 2920	3456	Explorer.EXE	84
PID 3456 wrote to memory of 2920	3456	Explorer.EXE	84
PID 3456 wrote to memory of 2920	3456	Explorer.EXE	84
PID 2920 wrote to memory of 4944	2920	mstsc.exe	85
PID 2920 wrote to memory of 4944	2920	mstsc.exe	85
PID 2920 wrote to memory of 4944	2920	mstsc.exe	85

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3456
- C:\Users\Admin\AppData\Local\Temp\1.exe
  "C:\Users\Admin\AppData\Local\Temp\1.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3472
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  PID:1684
- C:\Windows\SysWOW64\mstsc.exe
  "C:\Windows\SysWOW64\mstsc.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:2920
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4944

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

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/1684-1093-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1684-1095-0x00000000013F0000-0x000000000173A000-memory.dmp

Filesize
3.3MB

Download
memory/1684-1098-0x00000000013B0000-0x00000000013C5000-memory.dmp

Filesize
84KB

Download
memory/1684-1097-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2920-1103-0x0000000000080000-0x00000000001BA000-memory.dmp

Filesize
1.2MB

Download
memory/3456-1099-0x0000000002AD0000-0x0000000002BE7000-memory.dmp

Filesize
1.1MB

Download
memory/3456-1111-0x0000000007F50000-0x000000000808F000-memory.dmp

Filesize
1.2MB

Download
memory/3456-1108-0x0000000007F50000-0x000000000808F000-memory.dmp

Filesize
1.2MB

Download
memory/3456-1105-0x0000000002AD0000-0x0000000002BE7000-memory.dmp

Filesize
1.1MB

Download
memory/3472-22-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-10-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-64-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-62-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-60-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-58-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-54-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-53-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-46-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-44-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-42-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-40-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-38-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-36-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-34-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-30-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-28-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-26-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-24-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-12-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-20-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-16-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-14-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-67-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-8-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-6-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-56-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-50-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-48-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-32-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-18-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-3-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-1077-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download
memory/3472-1078-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download
memory/3472-1079-0x00000000051A0000-0x0000000005218000-memory.dmp

Filesize
480KB

Download
memory/3472-1080-0x0000000005220000-0x000000000526C000-memory.dmp

Filesize
304KB

Download
memory/3472-1081-0x0000000005350000-0x00000000053E2000-memory.dmp

Filesize
584KB

Download
memory/3472-1082-0x00000000053F0000-0x0000000005456000-memory.dmp

Filesize
408KB

Download
memory/3472-1086-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download
memory/3472-4-0x0000000005060000-0x0000000005158000-memory.dmp

Filesize
992KB

Download
memory/3472-2-0x0000000005060000-0x000000000515E000-memory.dmp

Filesize
1016KB

Download
memory/3472-1-0x00000000002F0000-0x00000000004E6000-memory.dmp

Filesize
2.0MB

Download
memory/3472-0-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

Filesize
4KB

Download
memory/3472-1087-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download
memory/3472-1088-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download
memory/3472-1089-0x0000000005F70000-0x0000000006514000-memory.dmp

Filesize
5.6MB

Download
memory/3472-1090-0x0000000005A50000-0x0000000005AA4000-memory.dmp

Filesize
336KB

Download
memory/3472-1094-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download