formbook | 2d928213977deceee1804db66dd7051e351097f71aa3dd2906cf3abdf1e9f621

General

Target

Way-bill doc. 00095760037503375000.exe
Size

993KB
MD5

28065df84df23230d9eabcd0a299fd62
SHA1

1a11b46fe50ca9509328914932f7c8f2fa58a387
SHA256

76ad60aecfad584010ccd54bceb275369376d7587ac24c2cc41fd63c20220a36
SHA512

c77166a3559a8638e322f1ba2192cb05b8cdf05ff689c728b556a984b47e53607caea3fec925bdeb428ee49bf9ae5cb4892cc68b52868029602f0206c3fecfe2
SSDEEP

12288:8q4FEF1rCGWQz4TboG9f9Oz144qkUEMiUmrf+NGiuNOMRfUpKXq6ZRvu9xojfOd2:J1dkTbooa1FqkUEAJYoMfXq6fwk+E

Score

10^/10

formbook crdi discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

crdi

Decoy

propertyjumpstartwebinar.com

boc-vip.club

polestarnyc.com

travelonlinebiz.com

bukovynaent.com

bestfashoin.com

miniindiastore.com

wehatebillgates.com

holmescountyjusticecourt.com

colectivorenovemosjuntos.com

houstowarehouse.com

aocsw.com

sml-uniform.com

bandanasaint.com

petposhdeluxe.com

ezcscpawq.com

ladiesoption.club

refixu.com

selfwrrrth.com

rovietry.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/2704-13-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/2704-18-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/2704-22-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/4076-28-0x0000000000430000-0x000000000045E000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 392 set thread context of 2704	392	Way-bill doc. 00095760037503375000.exe	100
PID 2704 set thread context of 3440	2704	Way-bill doc. 00095760037503375000.exe	56
PID 2704 set thread context of 3440	2704	Way-bill doc. 00095760037503375000.exe	56
PID 4076 set thread context of 3440	4076	help.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	Way-bill doc. 00095760037503375000.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	help.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
392	Way-bill doc. 00095760037503375000.exe
392	Way-bill doc. 00095760037503375000.exe
392	Way-bill doc. 00095760037503375000.exe
392	Way-bill doc. 00095760037503375000.exe
2704	Way-bill doc. 00095760037503375000.exe
2704	Way-bill doc. 00095760037503375000.exe
2704	Way-bill doc. 00095760037503375000.exe
2704	Way-bill doc. 00095760037503375000.exe
2704	Way-bill doc. 00095760037503375000.exe
2704	Way-bill doc. 00095760037503375000.exe
4076	help.exe
4076	help.exe
4076	help.exe
4076	help.exe
4076	help.exe
4076	help.exe
4076	help.exe
4076	help.exe
4076	help.exe
4076	help.exe
4076	help.exe
4076	help.exe
4076	help.exe
4076	help.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2704	Way-bill doc. 00095760037503375000.exe
2704	Way-bill doc. 00095760037503375000.exe
2704	Way-bill doc. 00095760037503375000.exe
2704	Way-bill doc. 00095760037503375000.exe
4076	help.exe
4076	help.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	392	Way-bill doc. 00095760037503375000.exe
Token: SeDebugPrivilege	2704	Way-bill doc. 00095760037503375000.exe
Token: SeDebugPrivilege	4076	help.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 392 wrote to memory of 2704	392	Way-bill doc. 00095760037503375000.exe	100
PID 392 wrote to memory of 2704	392	Way-bill doc. 00095760037503375000.exe	100
PID 392 wrote to memory of 2704	392	Way-bill doc. 00095760037503375000.exe	100
PID 392 wrote to memory of 2704	392	Way-bill doc. 00095760037503375000.exe	100
PID 392 wrote to memory of 2704	392	Way-bill doc. 00095760037503375000.exe	100
PID 392 wrote to memory of 2704	392	Way-bill doc. 00095760037503375000.exe	100
PID 3440 wrote to memory of 4076	3440	Explorer.EXE	101
PID 3440 wrote to memory of 4076	3440	Explorer.EXE	101
PID 3440 wrote to memory of 4076	3440	Explorer.EXE	101
PID 4076 wrote to memory of 2772	4076	help.exe	102
PID 4076 wrote to memory of 2772	4076	help.exe	102
PID 4076 wrote to memory of 2772	4076	help.exe	102

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3440
- C:\Users\Admin\AppData\Local\Temp\Way-bill doc. 00095760037503375000.exe
  "C:\Users\Admin\AppData\Local\Temp\Way-bill doc. 00095760037503375000.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:392
- - C:\Users\Admin\AppData\Local\Temp\Way-bill doc. 00095760037503375000.exe
    "C:\Users\Admin\AppData\Local\Temp\Way-bill doc. 00095760037503375000.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2704
- C:\Windows\SysWOW64\help.exe
  "C:\Windows\SysWOW64\help.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:4076
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Way-bill doc. 00095760037503375000.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2772

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

Loading Replay Monitor...

Downloads

memory/392-15-0x0000000074BE0000-0x0000000075390000-memory.dmp

Filesize
7.7MB

Download
memory/392-2-0x00000000059E0000-0x0000000005A7C000-memory.dmp

Filesize
624KB

Download
memory/392-0-0x0000000074BEE000-0x0000000074BEF000-memory.dmp

Filesize
4KB

Download
memory/392-3-0x0000000006030000-0x00000000065D4000-memory.dmp

Filesize
5.6MB

Download
memory/392-4-0x0000000005B20000-0x0000000005BB2000-memory.dmp

Filesize
584KB

Download
memory/392-5-0x0000000005A90000-0x0000000005A9A000-memory.dmp

Filesize
40KB

Download
memory/392-6-0x0000000074BE0000-0x0000000075390000-memory.dmp

Filesize
7.7MB

Download
memory/392-7-0x0000000005CE0000-0x0000000005D36000-memory.dmp

Filesize
344KB

Download
memory/392-8-0x0000000005F20000-0x0000000005F2C000-memory.dmp

Filesize
48KB

Download
memory/392-9-0x0000000074BEE000-0x0000000074BEF000-memory.dmp

Filesize
4KB

Download
memory/392-10-0x0000000074BE0000-0x0000000075390000-memory.dmp

Filesize
7.7MB

Download
memory/392-11-0x00000000018E0000-0x0000000001960000-memory.dmp

Filesize
512KB

Download
memory/392-12-0x0000000001970000-0x00000000019A8000-memory.dmp

Filesize
224KB

Download
memory/392-1-0x0000000000EF0000-0x0000000000FEE000-memory.dmp

Filesize
1016KB

Download
memory/2704-13-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2704-22-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2704-18-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2704-16-0x00000000010D0000-0x000000000141A000-memory.dmp

Filesize
3.3MB

Download
memory/2704-23-0x0000000000DC0000-0x0000000000DD4000-memory.dmp

Filesize
80KB

Download
memory/2704-19-0x0000000000D50000-0x0000000000D64000-memory.dmp

Filesize
80KB

Download
memory/3440-20-0x0000000007D80000-0x0000000007E74000-memory.dmp

Filesize
976KB

Download
memory/3440-24-0x00000000086E0000-0x00000000087A3000-memory.dmp

Filesize
780KB

Download
memory/3440-35-0x0000000008E50000-0x0000000008F00000-memory.dmp

Filesize
704KB

Download
memory/3440-29-0x00000000086E0000-0x00000000087A3000-memory.dmp

Filesize
780KB

Download
memory/3440-32-0x0000000008E50000-0x0000000008F00000-memory.dmp

Filesize
704KB

Download
memory/3440-34-0x0000000008E50000-0x0000000008F00000-memory.dmp

Filesize
704KB

Download
memory/3440-25-0x0000000007D80000-0x0000000007E74000-memory.dmp

Filesize
976KB

Download
memory/4076-27-0x0000000000520000-0x0000000000527000-memory.dmp

Filesize
28KB

Download
memory/4076-26-0x0000000000520000-0x0000000000527000-memory.dmp

Filesize
28KB

Download
memory/4076-28-0x0000000000430000-0x000000000045E000-memory.dmp

Filesize
184KB

Download

Analysis

Sharing