formbook | f3fe763c0bab8b6423578bbe031190508406459cf1648b47dcba314c95ca8fbc

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-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 4 IoCs

rat

resource	yara_rule
behavioral2/memory/4916-39-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4916-75-0x00000000004B0000-0x00000000004DF000-memory.dmp	formbook
behavioral2/memory/4916-76-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3644-93-0x0000000000EC0000-0x0000000000EEF000-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
2644	powershell.exe
1460	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	MalwareBazaar.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 244 set thread context of 4916	244	MalwareBazaar.exe	92
PID 4916 set thread context of 3484	4916	MalwareBazaar.exe	56
PID 3644 set thread context of 3484	3644	rundll32.exe	56

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	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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MalwareBazaar.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Explorer.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
4248	schtasks.exe

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
2644	powershell.exe
1460	powershell.exe
4916	MalwareBazaar.exe
4916	MalwareBazaar.exe
4916	MalwareBazaar.exe
4916	MalwareBazaar.exe
2644	powershell.exe
1460	powershell.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe
3644	rundll32.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4916	MalwareBazaar.exe
4916	MalwareBazaar.exe
4916	MalwareBazaar.exe
3644	rundll32.exe
3644	rundll32.exe

Suspicious use of AdjustPrivilegeToken 20 IoCs

description	pid	Process
Token: SeDebugPrivilege	2644	powershell.exe
Token: SeDebugPrivilege	1460	powershell.exe
Token: SeDebugPrivilege	4916	MalwareBazaar.exe
Token: SeDebugPrivilege	3644	rundll32.exe
Token: SeShutdownPrivilege	3484	Explorer.EXE
Token: SeCreatePagefilePrivilege	3484	Explorer.EXE
Token: SeShutdownPrivilege	3484	Explorer.EXE
Token: SeCreatePagefilePrivilege	3484	Explorer.EXE
Token: SeShutdownPrivilege	3484	Explorer.EXE
Token: SeCreatePagefilePrivilege	3484	Explorer.EXE
Token: SeShutdownPrivilege	3484	Explorer.EXE
Token: SeCreatePagefilePrivilege	3484	Explorer.EXE
Token: SeShutdownPrivilege	3484	Explorer.EXE
Token: SeCreatePagefilePrivilege	3484	Explorer.EXE
Token: SeShutdownPrivilege	3484	Explorer.EXE
Token: SeCreatePagefilePrivilege	3484	Explorer.EXE
Token: SeShutdownPrivilege	3484	Explorer.EXE
Token: SeCreatePagefilePrivilege	3484	Explorer.EXE
Token: SeShutdownPrivilege	3484	Explorer.EXE
Token: SeCreatePagefilePrivilege	3484	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3484	Explorer.EXE
3484	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3484	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 244 wrote to memory of 2644	244	MalwareBazaar.exe	86
PID 244 wrote to memory of 2644	244	MalwareBazaar.exe	86
PID 244 wrote to memory of 2644	244	MalwareBazaar.exe	86
PID 244 wrote to memory of 1460	244	MalwareBazaar.exe	88
PID 244 wrote to memory of 1460	244	MalwareBazaar.exe	88
PID 244 wrote to memory of 1460	244	MalwareBazaar.exe	88
PID 244 wrote to memory of 4248	244	MalwareBazaar.exe	90
PID 244 wrote to memory of 4248	244	MalwareBazaar.exe	90
PID 244 wrote to memory of 4248	244	MalwareBazaar.exe	90
PID 244 wrote to memory of 4916	244	MalwareBazaar.exe	92
PID 244 wrote to memory of 4916	244	MalwareBazaar.exe	92
PID 244 wrote to memory of 4916	244	MalwareBazaar.exe	92
PID 244 wrote to memory of 4916	244	MalwareBazaar.exe	92
PID 244 wrote to memory of 4916	244	MalwareBazaar.exe	92
PID 244 wrote to memory of 4916	244	MalwareBazaar.exe	92
PID 3484 wrote to memory of 3644	3484	Explorer.EXE	93
PID 3484 wrote to memory of 3644	3484	Explorer.EXE	93
PID 3484 wrote to memory of 3644	3484	Explorer.EXE	93
PID 3644 wrote to memory of 4232	3644	rundll32.exe	94
PID 3644 wrote to memory of 4232	3644	rundll32.exe	94
PID 3644 wrote to memory of 4232	3644	rundll32.exe	94

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3484
- C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
  "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:244
- - 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:2644
- - 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:1460
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nyQRtjgLz" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB508.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4248
- - 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:4916
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\SysWOW64\rundll32.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:3644
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4232

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

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
3d086a433708053f9bf9523e1d87a4e8

SHA1
b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

SHA256
6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

SHA512
931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
3e96dd3f830b94bfa4cb7f5e12a43f21

SHA1
968ef84f5d1075d641411047295777a847c334a7

SHA256
8d6beecde2bdf06e15504e65390af1b979e658fa73b2e636aee734ba41142b80

SHA512
826c8404b3ade5dfa432779dacf8784202898355bafdc4ce3858916ff650ae39afd57873e307f5b1ac4221f549cb6801f8242d9f50bfd88f19901e9cbd0d48ef

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3p4uxzdq.nax.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpB508.tmp

Filesize
1KB

MD5
3acdc680e7c815af7e60b65bfdd6d8c0

SHA1
85828b02b5db3619ebdbb971faedb6354af5404a

SHA256
802e39acb15c97f5a1c70919f2d65cfac9ed46007942b5e4b810be82f69c3122

SHA512
08bce13097bef740305a92488e07f6e5f412204c63c605e4eaa1ee4e637593bb02bc54d996e8f552ddbd5eb57ec73b181dc43810e59720e5456f5fbdbcf10135

Download Submit
memory/244-7-0x0000000005C40000-0x0000000005C56000-memory.dmp

Filesize
88KB

Download
memory/244-5-0x0000000005A30000-0x0000000005ACC000-memory.dmp

Filesize
624KB

Download
memory/244-6-0x0000000074FC0000-0x0000000075770000-memory.dmp

Filesize
7.7MB

Download
memory/244-0-0x0000000074FCE000-0x0000000074FCF000-memory.dmp

Filesize
4KB

Download
memory/244-8-0x0000000006A30000-0x0000000006A3E000-memory.dmp

Filesize
56KB

Download
memory/244-9-0x0000000006A60000-0x0000000006AD6000-memory.dmp

Filesize
472KB

Download
memory/244-4-0x00000000057A0000-0x00000000057AA000-memory.dmp

Filesize
40KB

Download
memory/244-3-0x00000000057B0000-0x0000000005842000-memory.dmp

Filesize
584KB

Download
memory/244-46-0x0000000074FC0000-0x0000000075770000-memory.dmp

Filesize
7.7MB

Download
memory/244-1-0x0000000000E10000-0x0000000000EC6000-memory.dmp

Filesize
728KB

Download
memory/244-2-0x0000000005C80000-0x0000000006224000-memory.dmp

Filesize
5.6MB

Download
memory/1460-82-0x0000000007AE0000-0x0000000007AEE000-memory.dmp

Filesize
56KB

Download
memory/1460-81-0x0000000007AB0000-0x0000000007AC1000-memory.dmp

Filesize
68KB

Download
memory/1460-80-0x0000000007B30000-0x0000000007BC6000-memory.dmp

Filesize
600KB

Download
memory/1460-83-0x0000000007AF0000-0x0000000007B04000-memory.dmp

Filesize
80KB

Download
memory/1460-78-0x0000000007920000-0x000000000792A000-memory.dmp

Filesize
40KB

Download
memory/1460-74-0x00000000078B0000-0x00000000078CA000-memory.dmp

Filesize
104KB

Download
memory/1460-41-0x0000000074FC0000-0x0000000075770000-memory.dmp

Filesize
7.7MB

Download
memory/1460-38-0x0000000074FC0000-0x0000000075770000-memory.dmp

Filesize
7.7MB

Download
memory/1460-88-0x0000000074FC0000-0x0000000075770000-memory.dmp

Filesize
7.7MB

Download
memory/1460-50-0x0000000007700000-0x0000000007732000-memory.dmp

Filesize
200KB

Download
memory/1460-72-0x0000000007770000-0x0000000007813000-memory.dmp

Filesize
652KB

Download
memory/1460-49-0x0000000006610000-0x000000000665C000-memory.dmp

Filesize
304KB

Download
memory/1460-51-0x0000000075850000-0x000000007589C000-memory.dmp

Filesize
304KB

Download
memory/2644-19-0x0000000005020000-0x0000000005042000-memory.dmp

Filesize
136KB

Download
memory/2644-85-0x0000000007720000-0x0000000007728000-memory.dmp

Filesize
32KB

Download
memory/2644-71-0x0000000006630000-0x000000000664E000-memory.dmp

Filesize
120KB

Download
memory/2644-48-0x00000000060E0000-0x00000000060FE000-memory.dmp

Filesize
120KB

Download
memory/2644-73-0x0000000007A40000-0x00000000080BA000-memory.dmp

Filesize
6.5MB

Download
memory/2644-92-0x0000000074FC0000-0x0000000075770000-memory.dmp

Filesize
7.7MB

Download
memory/2644-14-0x00000000027E0000-0x0000000002816000-memory.dmp

Filesize
216KB

Download
memory/2644-15-0x0000000074FC0000-0x0000000075770000-memory.dmp

Filesize
7.7MB

Download
memory/2644-37-0x0000000005B10000-0x0000000005E64000-memory.dmp

Filesize
3.3MB

Download
memory/2644-16-0x00000000051E0000-0x0000000005808000-memory.dmp

Filesize
6.2MB

Download
memory/2644-52-0x0000000075850000-0x000000007589C000-memory.dmp

Filesize
304KB

Download
memory/2644-20-0x0000000005880000-0x00000000058E6000-memory.dmp

Filesize
408KB

Download
memory/2644-21-0x0000000074FC0000-0x0000000075770000-memory.dmp

Filesize
7.7MB

Download
memory/2644-22-0x0000000005AA0000-0x0000000005B06000-memory.dmp

Filesize
408KB

Download
memory/2644-17-0x0000000074FC0000-0x0000000075770000-memory.dmp

Filesize
7.7MB

Download
memory/2644-84-0x0000000007740000-0x000000000775A000-memory.dmp

Filesize
104KB

Download
memory/3484-96-0x0000000003390000-0x000000000345A000-memory.dmp

Filesize
808KB

Download
memory/3644-79-0x00000000006A0000-0x00000000006B4000-memory.dmp

Filesize
80KB

Download
memory/3644-77-0x00000000006A0000-0x00000000006B4000-memory.dmp

Filesize
80KB

Download
memory/3644-93-0x0000000000EC0000-0x0000000000EEF000-memory.dmp

Filesize
188KB

Download
memory/4916-76-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4916-75-0x00000000004B0000-0x00000000004DF000-memory.dmp

Filesize
188KB

Download
memory/4916-39-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download