formbook | 94fbf90615b1baf84da26854c9c7b72115eaa12eb8392d898c7689f433980120

Analysis

max time kernel
149s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
30-01-2025 12:11

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General

Target

invoice739.exe
Size

833KB
MD5

cd2719066dc301f9cd5dcbfbf5323508
SHA1

44d580125ff889fa9e8cd169138e72979554497a
SHA256

94fbf90615b1baf84da26854c9c7b72115eaa12eb8392d898c7689f433980120
SHA512

35e8d8bd070e03ea1c611b85b45800364dd507636a60f37d3282ba55a85af4b5208b9c294c099d72994ad7938b20b8650735a64736a6967e94b376d986ab639e
SSDEEP

24576:3UMoO0sPUYPWt8WhEImRj/q6T6Sfglb/:3UBX8sB+jxC6T6SYlb

Score

10^/10

formbook a01d discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

a01d

Decoy

eniorshousing05.shop

rywisevas.biz

4726.pizza

itchen-design-42093.bond

3456.tech

4825.plus

nlinecraps.xyz

itamins-52836.bond

nfluencer-marketing-40442.bond

nline-advertising-58573.bond

rautogroups.net

limbtrip.net

oftware-download-14501.bond

nline-advertising-66733.bond

erity.xyz

xknrksi.icu

x-ist.club

yber-security-26409.bond

oincatch.xyz

onitoring-devices-34077.bond

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/2068-44-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2068-90-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4944-93-0x0000000001280000-0x00000000012AF000-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
3592	powershell.exe
216	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-1-5-21-4003209913-3868522715-854928974-1000\Control Panel\International\Geo\Nation	invoice739.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 3480 set thread context of 2068	3480	invoice739.exe	91
PID 2068 set thread context of 3424	2068	RegSvcs.exe	56
PID 2068 set thread context of 3424	2068	RegSvcs.exe	56
PID 4944 set thread context of 3424	4944	wlanext.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	wlanext.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	invoice739.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

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
1376	schtasks.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
3480	invoice739.exe
3592	powershell.exe
216	powershell.exe
3480	invoice739.exe
2068	RegSvcs.exe
2068	RegSvcs.exe
2068	RegSvcs.exe
2068	RegSvcs.exe
3592	powershell.exe
216	powershell.exe
2068	RegSvcs.exe
2068	RegSvcs.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe
4944	wlanext.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2068	RegSvcs.exe
2068	RegSvcs.exe
2068	RegSvcs.exe
2068	RegSvcs.exe
4944	wlanext.exe
4944	wlanext.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	3480	invoice739.exe
Token: SeDebugPrivilege	3592	powershell.exe
Token: SeDebugPrivilege	216	powershell.exe
Token: SeDebugPrivilege	2068	RegSvcs.exe
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE
Token: SeDebugPrivilege	4944	wlanext.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3424	Explorer.EXE
3424	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3424	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3480 wrote to memory of 3592	3480	invoice739.exe	85
PID 3480 wrote to memory of 3592	3480	invoice739.exe	85
PID 3480 wrote to memory of 3592	3480	invoice739.exe	85
PID 3480 wrote to memory of 216	3480	invoice739.exe	87
PID 3480 wrote to memory of 216	3480	invoice739.exe	87
PID 3480 wrote to memory of 216	3480	invoice739.exe	87
PID 3480 wrote to memory of 1376	3480	invoice739.exe	89
PID 3480 wrote to memory of 1376	3480	invoice739.exe	89
PID 3480 wrote to memory of 1376	3480	invoice739.exe	89
PID 3480 wrote to memory of 2068	3480	invoice739.exe	91
PID 3480 wrote to memory of 2068	3480	invoice739.exe	91
PID 3480 wrote to memory of 2068	3480	invoice739.exe	91
PID 3480 wrote to memory of 2068	3480	invoice739.exe	91
PID 3480 wrote to memory of 2068	3480	invoice739.exe	91
PID 3480 wrote to memory of 2068	3480	invoice739.exe	91
PID 3424 wrote to memory of 4944	3424	Explorer.EXE	92
PID 3424 wrote to memory of 4944	3424	Explorer.EXE	92
PID 3424 wrote to memory of 4944	3424	Explorer.EXE	92
PID 4944 wrote to memory of 1936	4944	wlanext.exe	93
PID 4944 wrote to memory of 1936	4944	wlanext.exe	93
PID 4944 wrote to memory of 1936	4944	wlanext.exe	93

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:3424
- C:\Users\Admin\AppData\Local\Temp\invoice739.exe
  "C:\Users\Admin\AppData\Local\Temp\invoice739.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3480
- - 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\invoice739.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3592
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\RDdEdL.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:216
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RDdEdL" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEA7F.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1376
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2068
- C:\Windows\SysWOW64\wlanext.exe
  "C:\Windows\SysWOW64\wlanext.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:4944
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1936

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
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

Filesize
18KB

MD5
9d967384ec082c5ab34199ec8a9cdaf7

SHA1
271336dd122ce76239213a6739a85a5f18f68cd4

SHA256
4086b05fd15190316becfe146fa24789165025d93077383f13b5e9e397e4154f

SHA512
0e992c37be385f596d24d75cc859b6bf2561d3fc84826a86995b3ecf76471242a61b8e16d48623ba647905c7e55b33d84fd4bfe50868029ee885ffb71178e430

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_aunsopmn.aej.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpEA7F.tmp

Filesize
1KB

MD5
c7d3f93d31fc5f3347edcc2cd140875f

SHA1
5bfd1058013581134fabc572273ceff1b9a39648

SHA256
31efbf8ec4a52d3e7a60c73de0108c3411bc6882cb252fe7e8b2cd4c5e48e712

SHA512
e3ded0bdef9d8de2c99abcaced6cac590af2b7e8baa4f840a93dc4cd86a4dc455c67e3ac45d4d231eaf4b0bc215d24e2e723758c465350fb9e1eaf9d2ab71f67

Download Submit
memory/216-81-0x0000000007B50000-0x0000000007B6A000-memory.dmp

Filesize
104KB

Download
memory/216-89-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/216-79-0x0000000007A40000-0x0000000007A4E000-memory.dmp

Filesize
56KB

Download
memory/216-52-0x0000000075140000-0x000000007518C000-memory.dmp

Filesize
304KB

Download
memory/216-51-0x0000000007480000-0x00000000074B2000-memory.dmp

Filesize
200KB

Download
memory/216-80-0x0000000007A50000-0x0000000007A64000-memory.dmp

Filesize
80KB

Download
memory/216-73-0x00000000074E0000-0x0000000007583000-memory.dmp

Filesize
652KB

Download
memory/216-34-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/216-62-0x00000000074C0000-0x00000000074DE000-memory.dmp

Filesize
120KB

Download
memory/216-75-0x0000000007810000-0x000000000782A000-memory.dmp

Filesize
104KB

Download
memory/216-76-0x0000000007880000-0x000000000788A000-memory.dmp

Filesize
40KB

Download
memory/216-19-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/216-20-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/2068-90-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2068-44-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3424-97-0x0000000008910000-0x0000000008A22000-memory.dmp

Filesize
1.1MB

Download
memory/3480-8-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/3480-0-0x00000000748BE000-0x00000000748BF000-memory.dmp

Filesize
4KB

Download
memory/3480-10-0x000000000C6F0000-0x000000000C78C000-memory.dmp

Filesize
624KB

Download
memory/3480-9-0x0000000004FC0000-0x000000000503A000-memory.dmp

Filesize
488KB

Download
memory/3480-47-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/3480-7-0x00000000748BE000-0x00000000748BF000-memory.dmp

Filesize
4KB

Download
memory/3480-6-0x0000000006C60000-0x0000000006C7E000-memory.dmp

Filesize
120KB

Download
memory/3480-5-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/3480-4-0x0000000005620000-0x000000000562A000-memory.dmp

Filesize
40KB

Download
memory/3480-3-0x0000000005650000-0x00000000056E2000-memory.dmp

Filesize
584KB

Download
memory/3480-2-0x0000000005C00000-0x00000000061A4000-memory.dmp

Filesize
5.6MB

Download
memory/3480-1-0x0000000000B50000-0x0000000000C26000-memory.dmp

Filesize
856KB

Download
memory/3592-16-0x00000000028C0000-0x00000000028F6000-memory.dmp

Filesize
216KB

Download
memory/3592-82-0x0000000007810000-0x0000000007818000-memory.dmp

Filesize
32KB

Download
memory/3592-63-0x0000000075140000-0x000000007518C000-memory.dmp

Filesize
304KB

Download
memory/3592-50-0x0000000006750000-0x000000000679C000-memory.dmp

Filesize
304KB

Download
memory/3592-77-0x0000000007770000-0x0000000007806000-memory.dmp

Filesize
600KB

Download
memory/3592-78-0x00000000076F0000-0x0000000007701000-memory.dmp

Filesize
68KB

Download
memory/3592-49-0x00000000061C0000-0x00000000061DE000-memory.dmp

Filesize
120KB

Download
memory/3592-22-0x0000000005400000-0x0000000005422000-memory.dmp

Filesize
136KB

Download
memory/3592-45-0x0000000005D40000-0x0000000006094000-memory.dmp

Filesize
3.3MB

Download
memory/3592-74-0x0000000007B30000-0x00000000081AA000-memory.dmp

Filesize
6.5MB

Download
memory/3592-28-0x00000000054B0000-0x0000000005516000-memory.dmp

Filesize
408KB

Download
memory/3592-29-0x0000000005B70000-0x0000000005BD6000-memory.dmp

Filesize
408KB

Download
memory/3592-88-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/3592-18-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/3592-17-0x0000000005540000-0x0000000005B68000-memory.dmp

Filesize
6.2MB

Download
memory/3592-15-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/4944-92-0x00000000005F0000-0x0000000000607000-memory.dmp

Filesize
92KB

Download
memory/4944-93-0x0000000001280000-0x00000000012AF000-memory.dmp

Filesize
188KB

Download
memory/4944-91-0x00000000005F0000-0x0000000000607000-memory.dmp

Filesize
92KB

Download