formbook | b9fd8df695457466649ea4bc0afc850b4fb6f2c3f365eb633036d66fb88f18f3

General

Target

PO_101&102.exe
Size

668KB
MD5

c8a5346cb632c91e0006252fd2c47bec
SHA1

a671570c31428ebc9bee30c9a2b9963bf629560a
SHA256

46a0a8595dccf134213c2e9ae10dd6fdd8e3ff5f0cb1b01014a6b67e31927eec
SHA512

eb3f2e70339e04821b86ced686a47abec277f59a0f90d03b512d6023d71d24de0ae84c36983291d40ecbb4765b94d146affea45b8d09d0d000633af20cfdf528
SSDEEP

12288:fhwV/8FumO5ZBLbGZ3EEFdmgTSuAReaSA7hqJFTP:fmV/8FumO/B3GtnmRufo7hq

Score

10^/10

formbook snr6 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

snr6

Decoy

jjglassmi1.com

vpsseattle.com

drfllc.top

staycoolonline.com

eptlove.com

solusimatasehat.site

ionrarecharlestonproperties.com

b3eflucg.xyz

tvchosun-usa.com

mmahzxwzsadqlshop.life

gospelimport.com

demoapps.website

jackburst54.com

99rocket.education

ccbwithbri.com

trapperairsoft.com

useroadly.com

ralphlaurenonline-nl.com

loanmaster4u.com

champ-beauty-tomigaoka-nail.com

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/3676-14-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3676-19-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3056-27-0x0000000000E70000-0x0000000000E9F000-memory.dmp	formbook
behavioral2/memory/3056-29-0x0000000000E70000-0x0000000000E9F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2888 set thread context of 3676	2888	PO_101&102.exe	91
PID 3676 set thread context of 3432	3676	PO_101&102.exe	56
PID 3056 set thread context of 3432	3056	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PO_101&102.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe

Suspicious behavior: EnumeratesProcesses 44 IoCs

pid	Process
3676	PO_101&102.exe
3676	PO_101&102.exe
3676	PO_101&102.exe
3676	PO_101&102.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe
3056	msiexec.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
3676	PO_101&102.exe
3676	PO_101&102.exe
3676	PO_101&102.exe
3056	msiexec.exe
3056	msiexec.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3676	PO_101&102.exe
Token: SeDebugPrivilege	3056	msiexec.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2888 wrote to memory of 3676	2888	PO_101&102.exe	91
PID 2888 wrote to memory of 3676	2888	PO_101&102.exe	91
PID 2888 wrote to memory of 3676	2888	PO_101&102.exe	91
PID 2888 wrote to memory of 3676	2888	PO_101&102.exe	91
PID 2888 wrote to memory of 3676	2888	PO_101&102.exe	91
PID 2888 wrote to memory of 3676	2888	PO_101&102.exe	91
PID 3432 wrote to memory of 3056	3432	Explorer.EXE	92
PID 3432 wrote to memory of 3056	3432	Explorer.EXE	92
PID 3432 wrote to memory of 3056	3432	Explorer.EXE	92
PID 3056 wrote to memory of 2796	3056	msiexec.exe	93
PID 3056 wrote to memory of 2796	3056	msiexec.exe	93
PID 3056 wrote to memory of 2796	3056	msiexec.exe	93

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3432
- C:\Users\Admin\AppData\Local\Temp\PO_101&102.exe
  "C:\Users\Admin\AppData\Local\Temp\PO_101&102.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2888
- - C:\Users\Admin\AppData\Local\Temp\PO_101&102.exe
    "{path}"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3676
- 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:3056
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\PO_101&102.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2796

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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/2888-16-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2888-1-0x0000000000350000-0x00000000003FE000-memory.dmp

Filesize
696KB

Download
memory/2888-2-0x0000000004DC0000-0x0000000004E5C000-memory.dmp

Filesize
624KB

Download
memory/2888-3-0x0000000005410000-0x00000000059B4000-memory.dmp

Filesize
5.6MB

Download
memory/2888-4-0x0000000004F00000-0x0000000004F92000-memory.dmp

Filesize
584KB

Download
memory/2888-5-0x0000000004E80000-0x0000000004E8A000-memory.dmp

Filesize
40KB

Download
memory/2888-6-0x00000000050F0000-0x0000000005146000-memory.dmp

Filesize
344KB

Download
memory/2888-7-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2888-9-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2888-8-0x0000000007950000-0x0000000007964000-memory.dmp

Filesize
80KB

Download
memory/2888-10-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

Filesize
4KB

Download
memory/2888-11-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2888-12-0x0000000007B20000-0x0000000007BA8000-memory.dmp

Filesize
544KB

Download
memory/2888-13-0x000000000A250000-0x000000000A284000-memory.dmp

Filesize
208KB

Download
memory/2888-0-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

Filesize
4KB

Download
memory/3056-24-0x0000000000370000-0x0000000000382000-memory.dmp

Filesize
72KB

Download
memory/3056-29-0x0000000000E70000-0x0000000000E9F000-memory.dmp

Filesize
188KB

Download
memory/3056-32-0x0000000002C90000-0x0000000002D23000-memory.dmp

Filesize
588KB

Download
memory/3056-28-0x0000000002D30000-0x000000000307A000-memory.dmp

Filesize
3.3MB

Download
memory/3056-27-0x0000000000E70000-0x0000000000E9F000-memory.dmp

Filesize
188KB

Download
memory/3056-22-0x0000000000370000-0x0000000000382000-memory.dmp

Filesize
72KB

Download
memory/3056-26-0x0000000000370000-0x0000000000382000-memory.dmp

Filesize
72KB

Download
memory/3432-21-0x0000000000F20000-0x0000000000FF1000-memory.dmp

Filesize
836KB

Download
memory/3432-30-0x0000000000F20000-0x0000000000FF1000-memory.dmp

Filesize
836KB

Download
memory/3432-35-0x0000000002ED0000-0x000000000304A000-memory.dmp

Filesize
1.5MB

Download
memory/3432-36-0x0000000002ED0000-0x000000000304A000-memory.dmp

Filesize
1.5MB

Download
memory/3432-38-0x0000000002ED0000-0x000000000304A000-memory.dmp

Filesize
1.5MB

Download
memory/3676-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3676-17-0x0000000000F90000-0x00000000012DA000-memory.dmp

Filesize
3.3MB

Download
memory/3676-20-0x0000000000EF0000-0x0000000000F04000-memory.dmp

Filesize
80KB

Download
memory/3676-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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