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 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2096-13-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/2096-17-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/2924-23-0x00000000000C0000-0x00000000000EE000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
2148	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2340 set thread context of 2096	2340	Way-bill doc. 00095760037503375000.exe	30
PID 2096 set thread context of 1264	2096	Way-bill doc. 00095760037503375000.exe	20
PID 2924 set thread context of 1264	2924	systray.exe	20

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	systray.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2340	Way-bill doc. 00095760037503375000.exe
2340	Way-bill doc. 00095760037503375000.exe
2340	Way-bill doc. 00095760037503375000.exe
2340	Way-bill doc. 00095760037503375000.exe
2096	Way-bill doc. 00095760037503375000.exe
2096	Way-bill doc. 00095760037503375000.exe
2924	systray.exe
2924	systray.exe
2924	systray.exe
2924	systray.exe
2924	systray.exe
2924	systray.exe
2924	systray.exe
2924	systray.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2096	Way-bill doc. 00095760037503375000.exe
2096	Way-bill doc. 00095760037503375000.exe
2096	Way-bill doc. 00095760037503375000.exe
2924	systray.exe
2924	systray.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2340	Way-bill doc. 00095760037503375000.exe
Token: SeDebugPrivilege	2096	Way-bill doc. 00095760037503375000.exe
Token: SeDebugPrivilege	2924	systray.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2340 wrote to memory of 960	2340	Way-bill doc. 00095760037503375000.exe	29
PID 2340 wrote to memory of 960	2340	Way-bill doc. 00095760037503375000.exe	29
PID 2340 wrote to memory of 960	2340	Way-bill doc. 00095760037503375000.exe	29
PID 2340 wrote to memory of 960	2340	Way-bill doc. 00095760037503375000.exe	29
PID 2340 wrote to memory of 2096	2340	Way-bill doc. 00095760037503375000.exe	30
PID 2340 wrote to memory of 2096	2340	Way-bill doc. 00095760037503375000.exe	30
PID 2340 wrote to memory of 2096	2340	Way-bill doc. 00095760037503375000.exe	30
PID 2340 wrote to memory of 2096	2340	Way-bill doc. 00095760037503375000.exe	30
PID 2340 wrote to memory of 2096	2340	Way-bill doc. 00095760037503375000.exe	30
PID 2340 wrote to memory of 2096	2340	Way-bill doc. 00095760037503375000.exe	30
PID 2340 wrote to memory of 2096	2340	Way-bill doc. 00095760037503375000.exe	30
PID 1264 wrote to memory of 2924	1264	Explorer.EXE	31
PID 1264 wrote to memory of 2924	1264	Explorer.EXE	31
PID 1264 wrote to memory of 2924	1264	Explorer.EXE	31
PID 1264 wrote to memory of 2924	1264	Explorer.EXE	31
PID 2924 wrote to memory of 2148	2924	systray.exe	32
PID 2924 wrote to memory of 2148	2924	systray.exe	32
PID 2924 wrote to memory of 2148	2924	systray.exe	32
PID 2924 wrote to memory of 2148	2924	systray.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1264
- 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:2340
- - C:\Users\Admin\AppData\Local\Temp\Way-bill doc. 00095760037503375000.exe
    "C:\Users\Admin\AppData\Local\Temp\Way-bill doc. 00095760037503375000.exe"
    3⤵
    PID:960
- - 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:2096
- C:\Windows\SysWOW64\systray.exe
  "C:\Windows\SysWOW64\systray.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:2924
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Way-bill doc. 00095760037503375000.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2148

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/1264-19-0x0000000006CC0000-0x0000000006E0D000-memory.dmp

Filesize
1.3MB

Download
memory/1264-25-0x00000000003C0000-0x00000000004C0000-memory.dmp

Filesize
1024KB

Download
memory/1264-24-0x0000000006CC0000-0x0000000006E0D000-memory.dmp

Filesize
1.3MB

Download
memory/2096-17-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2096-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2096-18-0x00000000003A0000-0x00000000003B4000-memory.dmp

Filesize
80KB

Download
memory/2096-15-0x0000000000AE0000-0x0000000000DE3000-memory.dmp

Filesize
3.0MB

Download
memory/2096-9-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2096-8-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2096-13-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2340-14-0x0000000074970000-0x000000007505E000-memory.dmp

Filesize
6.9MB

Download
memory/2340-7-0x0000000001FF0000-0x0000000002028000-memory.dmp

Filesize
224KB

Download
memory/2340-4-0x000000007497E000-0x000000007497F000-memory.dmp

Filesize
4KB

Download
memory/2340-6-0x00000000051D0000-0x0000000005250000-memory.dmp

Filesize
512KB

Download
memory/2340-5-0x0000000074970000-0x000000007505E000-memory.dmp

Filesize
6.9MB

Download
memory/2340-0-0x000000007497E000-0x000000007497F000-memory.dmp

Filesize
4KB

Download
memory/2340-3-0x0000000000710000-0x000000000071C000-memory.dmp

Filesize
48KB

Download
memory/2340-2-0x0000000074970000-0x000000007505E000-memory.dmp

Filesize
6.9MB

Download
memory/2340-1-0x0000000000090000-0x000000000018E000-memory.dmp

Filesize
1016KB

Download
memory/2924-22-0x00000000002C0000-0x00000000002C5000-memory.dmp

Filesize
20KB

Download
memory/2924-20-0x00000000002C0000-0x00000000002C5000-memory.dmp

Filesize
20KB

Download
memory/2924-23-0x00000000000C0000-0x00000000000EE000-memory.dmp

Filesize
184KB

Download

Analysis

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