formbook | f3fe763c0bab8b6423578bbe031190508406459cf1648b47dcba314c95ca8fbc

Analysis

max time kernel
145s
max time network
120s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
05-08-2024 14:37

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General

Target

MalwareBazaar.exe
Size

720KB
MD5

8bc1a99eb7877ceb4fc51338ef7fe9f2
SHA1

e16dc5f7b5af7340c8ccf95f0bb66f4dc7516053
SHA256

f3fe763c0bab8b6423578bbe031190508406459cf1648b47dcba314c95ca8fbc
SHA512

8e1768e9fb8279dad8deba557e3d06c65646508c87cd18c9b3d031969ee9ebec2024cc9af3cfcbb5d497d835049364726542c9ca3e7259d5d2b30491dc61bcbc
SSDEEP

12288:tU3929BC4rqhp2ejzGSs89JtD0EEdf6aqjCScbuyUIzEYPmRDCVZkR:tU89BNuhT489J90EEdf6aSci+9E

Score

10^/10

formbook ps15 discovery execution 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 2 IoCs

rat

resource	yara_rule
behavioral1/memory/3052-23-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2100-28-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2796	powershell.exe
2832	powershell.exe

Deletes itself 1 IoCs

pid	Process
2008	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2012 set thread context of 3052	2012	MalwareBazaar.exe	36
PID 3052 set thread context of 1228	3052	MalwareBazaar.exe	21
PID 2100 set thread context of 1228	2100	raserver.exe	21

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 6 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	raserver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2576	schtasks.exe

Suspicious behavior: EnumeratesProcesses 30 IoCs

pid	Process
3052	MalwareBazaar.exe
3052	MalwareBazaar.exe
2796	powershell.exe
2832	powershell.exe
2100	raserver.exe
2100	raserver.exe
2100	raserver.exe
2100	raserver.exe
2100	raserver.exe
2100	raserver.exe
2100	raserver.exe
2100	raserver.exe
2100	raserver.exe
2100	raserver.exe
2100	raserver.exe
2100	raserver.exe
2100	raserver.exe
2100	raserver.exe
2100	raserver.exe
2100	raserver.exe
2100	raserver.exe
2100	raserver.exe
2100	raserver.exe
2100	raserver.exe
2100	raserver.exe
2100	raserver.exe
2100	raserver.exe
2100	raserver.exe
2100	raserver.exe
2100	raserver.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
3052	MalwareBazaar.exe
3052	MalwareBazaar.exe
3052	MalwareBazaar.exe
2100	raserver.exe
2100	raserver.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3052	MalwareBazaar.exe
Token: SeDebugPrivilege	2796	powershell.exe
Token: SeDebugPrivilege	2832	powershell.exe
Token: SeDebugPrivilege	2100	raserver.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2012 wrote to memory of 2796	2012	MalwareBazaar.exe	30
PID 2012 wrote to memory of 2796	2012	MalwareBazaar.exe	30
PID 2012 wrote to memory of 2796	2012	MalwareBazaar.exe	30
PID 2012 wrote to memory of 2796	2012	MalwareBazaar.exe	30
PID 2012 wrote to memory of 2832	2012	MalwareBazaar.exe	32
PID 2012 wrote to memory of 2832	2012	MalwareBazaar.exe	32
PID 2012 wrote to memory of 2832	2012	MalwareBazaar.exe	32
PID 2012 wrote to memory of 2832	2012	MalwareBazaar.exe	32
PID 2012 wrote to memory of 2576	2012	MalwareBazaar.exe	33
PID 2012 wrote to memory of 2576	2012	MalwareBazaar.exe	33
PID 2012 wrote to memory of 2576	2012	MalwareBazaar.exe	33
PID 2012 wrote to memory of 2576	2012	MalwareBazaar.exe	33
PID 2012 wrote to memory of 3052	2012	MalwareBazaar.exe	36
PID 2012 wrote to memory of 3052	2012	MalwareBazaar.exe	36
PID 2012 wrote to memory of 3052	2012	MalwareBazaar.exe	36
PID 2012 wrote to memory of 3052	2012	MalwareBazaar.exe	36
PID 2012 wrote to memory of 3052	2012	MalwareBazaar.exe	36
PID 2012 wrote to memory of 3052	2012	MalwareBazaar.exe	36
PID 2012 wrote to memory of 3052	2012	MalwareBazaar.exe	36
PID 1228 wrote to memory of 2100	1228	Explorer.EXE	37
PID 1228 wrote to memory of 2100	1228	Explorer.EXE	37
PID 1228 wrote to memory of 2100	1228	Explorer.EXE	37
PID 1228 wrote to memory of 2100	1228	Explorer.EXE	37
PID 2100 wrote to memory of 2008	2100	raserver.exe	38
PID 2100 wrote to memory of 2008	2100	raserver.exe	38
PID 2100 wrote to memory of 2008	2100	raserver.exe	38
PID 2100 wrote to memory of 2008	2100	raserver.exe	38

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1228
- 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 use of WriteProcessMemory
  PID:2012
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2796
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\nyQRtjgLz.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2832
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nyQRtjgLz" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5C24.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2576
- - 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:3052
- C:\Windows\SysWOW64\raserver.exe
  "C:\Windows\SysWOW64\raserver.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:2100
- - 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:2008

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp5C24.tmp

Filesize
1KB

MD5
651a909b8401215fb0e067decd613c0f

SHA1
93a2cee0ed8c90aa44552b543147763ce1facd26

SHA256
cdf4f595d87b6b2b621b407205eb045f21046d84f40fa5b7939a67fb083b70d0

SHA512
a73b2d132e0dcc258b3c364d04287062387d33db2b523d24218df7ace5c621baa0f7ef46aa4b4def61f2c5db1a27b9b72c62206c837ecf6a2a7024b87f1e4d7b

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
8e64f180a92cbb7f3e263f9358445525

SHA1
636b6482d74a68d22af59f98f156df8e69dcfe8f

SHA256
cbb8b8ef31075858e1253f9e90dd41f5564b876051c9bdb5f446049417f09ee7

SHA512
13f0ffe7c727b3ff63728de22ad2ea15ddcc19483dcc676992dfb8341b6c1fd62892675c58bcaaf72e33b3fba6dd2904a4b04fb5e915fb46238b5aa894a21dbe

Download Submit
memory/1228-26-0x0000000003940000-0x0000000003A40000-memory.dmp

Filesize
1024KB

Download
memory/2012-24-0x0000000074740000-0x0000000074E2E000-memory.dmp

Filesize
6.9MB

Download
memory/2012-4-0x0000000000630000-0x000000000063E000-memory.dmp

Filesize
56KB

Download
memory/2012-5-0x0000000004D90000-0x0000000004E06000-memory.dmp

Filesize
472KB

Download
memory/2012-3-0x00000000009A0000-0x00000000009B6000-memory.dmp

Filesize
88KB

Download
memory/2012-2-0x0000000074740000-0x0000000074E2E000-memory.dmp

Filesize
6.9MB

Download
memory/2012-0-0x000000007474E000-0x000000007474F000-memory.dmp

Filesize
4KB

Download
memory/2012-1-0x0000000000FF0000-0x00000000010A6000-memory.dmp

Filesize
728KB

Download
memory/2100-27-0x00000000002D0000-0x00000000002EC000-memory.dmp

Filesize
112KB

Download
memory/2100-28-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/3052-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3052-23-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3052-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3052-20-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download