formbook | f69821010916c746e5e371fcd011dda072fdfc09ac964e9db9506a97cec1fe3e

General

Target

$PLUGINSDIR/nqdipsrotb.dll
Size

31KB
MD5

8ab953e111816f48fd4aab119809af53
SHA1

5ad3c9b13395ea5912bbff13746171a387f43979
SHA256

cb989078f012a4f8f8fe2b0ee20790a792dc6f1968cb0bba55f654ffb3346c20
SHA512

75b37e5fcc1994686eb91316ef45ec46e9ada54cbe985e9671c8e0d09a153ddb6bbfd2881dc278c6b351c6a022d1db6c33b6b7a7ce73b0eb4af5a84ca2e7e421
SSDEEP

768:NwnNXmYszi/iiIQSE1J982EvVaM+eDdeQTl:HzHLQSA382EvVHOQ

Score

10^/10

formbook s3dy discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

s3dy

Decoy

ravlygte.info

marketnewsville.online

flooring-envy.com

flavourhouston.com

donghohanghieunam.com

globleitsolutions.com

digitalgraphicarts.com

cupidbeautybar.com

cannavybes.com

negative-dsp.com

littledali.com

meltwatersoftware.info

blackdogland.com

danasales.com

mississippiscorecard.com

mainesmoker.com

sirenxinlilzixun.com

tychehang.com

gentciu.com

weckloltd.com

Signatures

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

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral3/memory/2652-4-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral3/memory/2652-9-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2452 set thread context of 2652	2452	rundll32.exe	32
PID 2652 set thread context of 1192	2652	rundll32.exe	21
PID 700 set thread context of 1192	700	NAPSTAT.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	NAPSTAT.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2652	rundll32.exe
2652	rundll32.exe
700	NAPSTAT.EXE
700	NAPSTAT.EXE
700	NAPSTAT.EXE
700	NAPSTAT.EXE
700	NAPSTAT.EXE
700	NAPSTAT.EXE
700	NAPSTAT.EXE
700	NAPSTAT.EXE
700	NAPSTAT.EXE
700	NAPSTAT.EXE
700	NAPSTAT.EXE
700	NAPSTAT.EXE
700	NAPSTAT.EXE
700	NAPSTAT.EXE
700	NAPSTAT.EXE
700	NAPSTAT.EXE
700	NAPSTAT.EXE
700	NAPSTAT.EXE
700	NAPSTAT.EXE
700	NAPSTAT.EXE
700	NAPSTAT.EXE
700	NAPSTAT.EXE
700	NAPSTAT.EXE
700	NAPSTAT.EXE
700	NAPSTAT.EXE
700	NAPSTAT.EXE
700	NAPSTAT.EXE
700	NAPSTAT.EXE
700	NAPSTAT.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2652	rundll32.exe
2652	rundll32.exe
2652	rundll32.exe
700	NAPSTAT.EXE
700	NAPSTAT.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2652	rundll32.exe
Token: SeDebugPrivilege	700	NAPSTAT.EXE

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2324 wrote to memory of 2452	2324	rundll32.exe	31
PID 2324 wrote to memory of 2452	2324	rundll32.exe	31
PID 2324 wrote to memory of 2452	2324	rundll32.exe	31
PID 2324 wrote to memory of 2452	2324	rundll32.exe	31
PID 2324 wrote to memory of 2452	2324	rundll32.exe	31
PID 2324 wrote to memory of 2452	2324	rundll32.exe	31
PID 2324 wrote to memory of 2452	2324	rundll32.exe	31
PID 2452 wrote to memory of 2652	2452	rundll32.exe	32
PID 2452 wrote to memory of 2652	2452	rundll32.exe	32
PID 2452 wrote to memory of 2652	2452	rundll32.exe	32
PID 2452 wrote to memory of 2652	2452	rundll32.exe	32
PID 2452 wrote to memory of 2652	2452	rundll32.exe	32
PID 2452 wrote to memory of 2652	2452	rundll32.exe	32
PID 2452 wrote to memory of 2652	2452	rundll32.exe	32
PID 2452 wrote to memory of 2652	2452	rundll32.exe	32
PID 2452 wrote to memory of 2652	2452	rundll32.exe	32
PID 2452 wrote to memory of 2652	2452	rundll32.exe	32
PID 1192 wrote to memory of 700	1192	Explorer.EXE	33
PID 1192 wrote to memory of 700	1192	Explorer.EXE	33
PID 1192 wrote to memory of 700	1192	Explorer.EXE	33
PID 1192 wrote to memory of 700	1192	Explorer.EXE	33
PID 700 wrote to memory of 2480	700	NAPSTAT.EXE	34
PID 700 wrote to memory of 2480	700	NAPSTAT.EXE	34
PID 700 wrote to memory of 2480	700	NAPSTAT.EXE	34
PID 700 wrote to memory of 2480	700	NAPSTAT.EXE	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1192
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nqdipsrotb.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2324
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nqdipsrotb.dll,#1
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2452
  - - C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nqdipsrotb.dll,#1
      4⤵
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:2652
- C:\Windows\SysWOW64\NAPSTAT.EXE
  "C:\Windows\SysWOW64\NAPSTAT.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:700
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\rundll32.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2480

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/700-14-0x00000000005C0000-0x0000000000606000-memory.dmp

Filesize
280KB

Download
memory/700-13-0x00000000005C0000-0x0000000000606000-memory.dmp

Filesize
280KB

Download
memory/1192-12-0x0000000004A00000-0x0000000004AFC000-memory.dmp

Filesize
1008KB

Download
memory/1192-15-0x0000000004A00000-0x0000000004AFC000-memory.dmp

Filesize
1008KB

Download
memory/1192-11-0x0000000003A60000-0x0000000003B60000-memory.dmp

Filesize
1024KB

Download
memory/2452-6-0x0000000074C50000-0x0000000074C5B000-memory.dmp

Filesize
44KB

Download
memory/2452-2-0x0000000074C60000-0x0000000074C6B000-memory.dmp

Filesize
44KB

Download
memory/2452-5-0x0000000074C60000-0x0000000074C6B000-memory.dmp

Filesize
44KB

Download
memory/2452-3-0x0000000074C50000-0x0000000074C5B000-memory.dmp

Filesize
44KB

Download
memory/2452-0-0x0000000074C60000-0x0000000074C6B000-memory.dmp

Filesize
44KB

Download
memory/2452-1-0x0000000074C50000-0x0000000074C5B000-memory.dmp

Filesize
44KB

Download
memory/2652-9-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2652-7-0x0000000002060000-0x0000000002363000-memory.dmp

Filesize
3.0MB

Download
memory/2652-10-0x0000000000200000-0x0000000000214000-memory.dmp

Filesize
80KB

Download
memory/2652-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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