formbook | a21a700fece84c6147e440250f69bb5bede2a524de1b138bcc73a6cab55e69c2

General

Target

$PLUGINSDIR/pibyjvpg.dll
Size

31KB
MD5

7e38c9c4dae24727bfc89d6feba8cb3e
SHA1

53500d0d0b8921fe6690dbdd2009be6d9c06adc6
SHA256

087ed293380602e60c32df98be8412bd73d32beba232bc255a6fb3edf46134ff
SHA512

835412fa1c001a1ec811a51be9afc361cea9ec8db8a85912bf7007b20f74b338323b59ac637a1cfc9afebdf57c6a441680c0707d15c13c7560eaacc94a56a985
SSDEEP

768:ZMFszi/lKK6Q4JEdfK2lbdsQ5ZpTIPvATh:/zyKxQ4JEdfK2lbxLpTkA

Score

10^/10

formbook dn7r discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

dn7r

Decoy

eventphotographerdfw.com

thehalalcoinstaking.com

philipfaziofineart.com

intercoh.com

gaiaseyephotography.com

chatbotforrealestate.com

lovelancemg.com

marlieskasberger.com

elcongoenespanol.info

lepirecredit.com

distribution-concept.com

e99game.com

exit11festival.com

twodollartoothbrushclub.com

cocktailsandlawn.com

performimprove.network

24horas-telefono-11840.com

cosmossify.com

kellenleote.com

perovskite.energy

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
behavioral3/memory/2368-4-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral3/memory/2368-9-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral3/memory/2368-14-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral3/memory/1124-20-0x0000000000070000-0x000000000009F000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2492 set thread context of 2368	2492	rundll32.exe	31
PID 2368 set thread context of 1212	2368	rundll32.exe	21
PID 2368 set thread context of 1212	2368	rundll32.exe	21
PID 1124 set thread context of 1212	1124	wscript.exe	21

System Location Discovery: System Language Discovery 1 TTPs 4 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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wscript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2368	rundll32.exe
2368	rundll32.exe
2368	rundll32.exe
1124	wscript.exe
1124	wscript.exe
1124	wscript.exe
1124	wscript.exe
1124	wscript.exe
1124	wscript.exe
1124	wscript.exe
1124	wscript.exe
1124	wscript.exe
1124	wscript.exe
1124	wscript.exe
1124	wscript.exe
1124	wscript.exe
1124	wscript.exe
1124	wscript.exe
1124	wscript.exe
1124	wscript.exe
1124	wscript.exe
1124	wscript.exe
1124	wscript.exe
1124	wscript.exe
1124	wscript.exe
1124	wscript.exe
1124	wscript.exe
1124	wscript.exe
1124	wscript.exe
1124	wscript.exe
1124	wscript.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2368	rundll32.exe
2368	rundll32.exe
2368	rundll32.exe
2368	rundll32.exe
1124	wscript.exe
1124	wscript.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2368	rundll32.exe
Token: SeDebugPrivilege	1124	wscript.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1976 wrote to memory of 2492	1976	rundll32.exe	30
PID 1976 wrote to memory of 2492	1976	rundll32.exe	30
PID 1976 wrote to memory of 2492	1976	rundll32.exe	30
PID 1976 wrote to memory of 2492	1976	rundll32.exe	30
PID 1976 wrote to memory of 2492	1976	rundll32.exe	30
PID 1976 wrote to memory of 2492	1976	rundll32.exe	30
PID 1976 wrote to memory of 2492	1976	rundll32.exe	30
PID 2492 wrote to memory of 2368	2492	rundll32.exe	31
PID 2492 wrote to memory of 2368	2492	rundll32.exe	31
PID 2492 wrote to memory of 2368	2492	rundll32.exe	31
PID 2492 wrote to memory of 2368	2492	rundll32.exe	31
PID 2492 wrote to memory of 2368	2492	rundll32.exe	31
PID 2492 wrote to memory of 2368	2492	rundll32.exe	31
PID 2492 wrote to memory of 2368	2492	rundll32.exe	31
PID 2492 wrote to memory of 2368	2492	rundll32.exe	31
PID 2492 wrote to memory of 2368	2492	rundll32.exe	31
PID 2492 wrote to memory of 2368	2492	rundll32.exe	31
PID 1212 wrote to memory of 1124	1212	Explorer.EXE	32
PID 1212 wrote to memory of 1124	1212	Explorer.EXE	32
PID 1212 wrote to memory of 1124	1212	Explorer.EXE	32
PID 1212 wrote to memory of 1124	1212	Explorer.EXE	32
PID 1124 wrote to memory of 1920	1124	wscript.exe	34
PID 1124 wrote to memory of 1920	1124	wscript.exe	34
PID 1124 wrote to memory of 1920	1124	wscript.exe	34
PID 1124 wrote to memory of 1920	1124	wscript.exe	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1212
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\pibyjvpg.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1976
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\pibyjvpg.dll,#1
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2492
  - - C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\pibyjvpg.dll,#1
      4⤵
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:2368
- C:\Windows\SysWOW64\wscript.exe
  "C:\Windows\SysWOW64\wscript.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:1124
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\rundll32.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1920

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/1124-20-0x0000000000070000-0x000000000009F000-memory.dmp

Filesize
188KB

Download
memory/1124-18-0x0000000000970000-0x0000000000996000-memory.dmp

Filesize
152KB

Download
memory/1124-19-0x0000000000970000-0x0000000000996000-memory.dmp

Filesize
152KB

Download
memory/1212-12-0x0000000007B10000-0x0000000007CB4000-memory.dmp

Filesize
1.6MB

Download
memory/1212-23-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/1212-21-0x0000000007CC0000-0x0000000007E38000-memory.dmp

Filesize
1.5MB

Download
memory/1212-17-0x0000000007CC0000-0x0000000007E38000-memory.dmp

Filesize
1.5MB

Download
memory/1212-16-0x0000000007B10000-0x0000000007CB4000-memory.dmp

Filesize
1.6MB

Download
memory/1212-11-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/2368-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2368-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2368-10-0x00000000003E0000-0x00000000003F5000-memory.dmp

Filesize
84KB

Download
memory/2368-7-0x0000000002090000-0x0000000002393000-memory.dmp

Filesize
3.0MB

Download
memory/2368-15-0x0000000000450000-0x0000000000465000-memory.dmp

Filesize
84KB

Download
memory/2368-4-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2492-6-0x0000000074890000-0x000000007489B000-memory.dmp

Filesize
44KB

Download
memory/2492-1-0x0000000074890000-0x000000007489B000-memory.dmp

Filesize
44KB

Download
memory/2492-5-0x00000000748A0000-0x00000000748AB000-memory.dmp

Filesize
44KB

Download
memory/2492-2-0x0000000074880000-0x000000007488B000-memory.dmp

Filesize
44KB

Download
memory/2492-3-0x00000000748A0000-0x00000000748AB000-memory.dmp

Filesize
44KB

Download
memory/2492-0-0x00000000748A0000-0x00000000748AB000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing