formbook | b1f7d45bb000c3201af5c92b009519206fd4bd83b568f0d360b8603520dc5334

General

Target

MalwareBazaar.exe
Size

633KB
MD5

04aad3880cdd785ac57270d136b4ae5d
SHA1

889ee3a18eb2e035668acc707cff787fea501734
SHA256

b1f7d45bb000c3201af5c92b009519206fd4bd83b568f0d360b8603520dc5334
SHA512

1e0b7f42b820a6cbfabfe9e0e7aa63787e7286bf94308df47dc4f049b424347507b4744d89d0d1cb5ce5f60fc59ea1661f597e3b89290786cc30c9fb1b2dd5a4
SSDEEP

12288:WUFzK9EHj+5YySzHAOZiUUt70/5FUNcLz5LqR3CF/m4fkn:ZzK9EHjuYySzgOBSQLUNcpelCQckn

Score

10^/10

formbook ps15 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ps15

Decoy

57797.asia

jhpwt.net

basketballdrillsforkids.com

zgzf6.rest

casinomaxnodepositbonus.icu

uptocryptonews.com

gomenasorry.com

fortanix.space

stripscity.xyz

genbotdiy.xyz

mayson-wedding.com

neb-hub.net

seancollinsmusic.com

migraine-treatment-57211.bond

prosperawoman.info

tradefairleads.tech

xn--yeminlitercme-6ob.com

xwaveevent.com

fashiontrendshub.xyz

window-replacement-80823.bond

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2040-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2040-18-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2868-24-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
2736	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2172 set thread context of 2040	2172	MalwareBazaar.exe	32
PID 2040 set thread context of 1188	2040	MalwareBazaar.exe	21
PID 2868 set thread context of 1188	2868	NAPSTAT.EXE	21

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	MalwareBazaar.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
2172	MalwareBazaar.exe
2172	MalwareBazaar.exe
2040	MalwareBazaar.exe
2040	MalwareBazaar.exe
2868	NAPSTAT.EXE
2868	NAPSTAT.EXE
2868	NAPSTAT.EXE
2868	NAPSTAT.EXE
2868	NAPSTAT.EXE
2868	NAPSTAT.EXE
2868	NAPSTAT.EXE
2868	NAPSTAT.EXE
2868	NAPSTAT.EXE
2868	NAPSTAT.EXE
2868	NAPSTAT.EXE
2868	NAPSTAT.EXE
2868	NAPSTAT.EXE
2868	NAPSTAT.EXE
2868	NAPSTAT.EXE
2868	NAPSTAT.EXE
2868	NAPSTAT.EXE
2868	NAPSTAT.EXE
2868	NAPSTAT.EXE
2868	NAPSTAT.EXE
2868	NAPSTAT.EXE
2868	NAPSTAT.EXE
2868	NAPSTAT.EXE
2868	NAPSTAT.EXE
2868	NAPSTAT.EXE
2868	NAPSTAT.EXE
2868	NAPSTAT.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2040	MalwareBazaar.exe
2040	MalwareBazaar.exe
2040	MalwareBazaar.exe
2868	NAPSTAT.EXE
2868	NAPSTAT.EXE

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2172	MalwareBazaar.exe
Token: SeDebugPrivilege	2040	MalwareBazaar.exe
Token: SeDebugPrivilege	2868	NAPSTAT.EXE

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2172 wrote to memory of 2508	2172	MalwareBazaar.exe	31
PID 2172 wrote to memory of 2508	2172	MalwareBazaar.exe	31
PID 2172 wrote to memory of 2508	2172	MalwareBazaar.exe	31
PID 2172 wrote to memory of 2508	2172	MalwareBazaar.exe	31
PID 2172 wrote to memory of 2040	2172	MalwareBazaar.exe	32
PID 2172 wrote to memory of 2040	2172	MalwareBazaar.exe	32
PID 2172 wrote to memory of 2040	2172	MalwareBazaar.exe	32
PID 2172 wrote to memory of 2040	2172	MalwareBazaar.exe	32
PID 2172 wrote to memory of 2040	2172	MalwareBazaar.exe	32
PID 2172 wrote to memory of 2040	2172	MalwareBazaar.exe	32
PID 2172 wrote to memory of 2040	2172	MalwareBazaar.exe	32
PID 1188 wrote to memory of 2868	1188	Explorer.EXE	33
PID 1188 wrote to memory of 2868	1188	Explorer.EXE	33
PID 1188 wrote to memory of 2868	1188	Explorer.EXE	33
PID 1188 wrote to memory of 2868	1188	Explorer.EXE	33
PID 2868 wrote to memory of 2736	2868	NAPSTAT.EXE	34
PID 2868 wrote to memory of 2736	2868	NAPSTAT.EXE	34
PID 2868 wrote to memory of 2736	2868	NAPSTAT.EXE	34
PID 2868 wrote to memory of 2736	2868	NAPSTAT.EXE	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1188
- C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
  "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2172
- - C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
    "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"
    3⤵
    PID:2508
- - C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
    "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2040
- 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:2868
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2736

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/1188-20-0x00000000078E0000-0x0000000007A80000-memory.dmp

Filesize
1.6MB

Download
memory/1188-27-0x00000000078E0000-0x0000000007A80000-memory.dmp

Filesize
1.6MB

Download
memory/1188-17-0x0000000003C20000-0x0000000003D20000-memory.dmp

Filesize
1024KB

Download
memory/2040-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2040-15-0x0000000000890000-0x0000000000B93000-memory.dmp

Filesize
3.0MB

Download
memory/2040-19-0x0000000000300000-0x0000000000314000-memory.dmp

Filesize
80KB

Download
memory/2040-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2040-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2040-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2040-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2172-6-0x00000000047E0000-0x0000000004856000-memory.dmp

Filesize
472KB

Download
memory/2172-14-0x0000000074C60000-0x000000007534E000-memory.dmp

Filesize
6.9MB

Download
memory/2172-4-0x0000000000550000-0x000000000055E000-memory.dmp

Filesize
56KB

Download
memory/2172-3-0x0000000000710000-0x0000000000796000-memory.dmp

Filesize
536KB

Download
memory/2172-5-0x0000000000560000-0x000000000056E000-memory.dmp

Filesize
56KB

Download
memory/2172-0-0x0000000074C6E000-0x0000000074C6F000-memory.dmp

Filesize
4KB

Download
memory/2172-2-0x0000000074C60000-0x000000007534E000-memory.dmp

Filesize
6.9MB

Download
memory/2172-1-0x00000000001A0000-0x0000000000244000-memory.dmp

Filesize
656KB

Download
memory/2868-21-0x0000000000F40000-0x0000000000F86000-memory.dmp

Filesize
280KB

Download
memory/2868-23-0x0000000000F40000-0x0000000000F86000-memory.dmp

Filesize
280KB

Download
memory/2868-24-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download

Analysis

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