formbook | 19c20b84bd28cc534ea649747488dff45cb53539aaedc936ee2854f93cd6e368

Analysis

max time kernel
145s
max time network
131s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
31/01/2025, 03:35

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General

Target

19c20b84bd28cc534ea649747488dff45cb53539aaedc936ee2854f93cd6e368.exe
Size

675KB
MD5

d3a2936e355fc5b62c309d80aa65e9b4
SHA1

d7bafe72a3a8a9e06901155cdbf020d98f2535d7
SHA256

19c20b84bd28cc534ea649747488dff45cb53539aaedc936ee2854f93cd6e368
SHA512

01946f702c5af9696444a4c5d1db50390a53b2c0d849acb15c6079db32c3d7834492b357554d0daaab233c7e5024e452ecf6262bd23015558c0fc55abd81f116
SSDEEP

12288:BXcTTpuOZhzNA50jBIiIe/S+wi+2n7nw17jIBd5a:BcEsdmGI7eK+5+2nmjI4

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/4000-46-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4000-91-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2600-94-0x0000000000A00000-0x0000000000A2F000-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
4316	powershell.exe
1520	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	19c20b84bd28cc534ea649747488dff45cb53539aaedc936ee2854f93cd6e368.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 5060 set thread context of 4000	5060	19c20b84bd28cc534ea649747488dff45cb53539aaedc936ee2854f93cd6e368.exe	92
PID 4000 set thread context of 3500	4000	RegSvcs.exe	56
PID 4000 set thread context of 3500	4000	RegSvcs.exe	56
PID 2600 set thread context of 3500	2600	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	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	19c20b84bd28cc534ea649747488dff45cb53539aaedc936ee2854f93cd6e368.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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
3232	schtasks.exe

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
5060	19c20b84bd28cc534ea649747488dff45cb53539aaedc936ee2854f93cd6e368.exe
4316	powershell.exe
1520	powershell.exe
1520	powershell.exe
5060	19c20b84bd28cc534ea649747488dff45cb53539aaedc936ee2854f93cd6e368.exe
4000	RegSvcs.exe
4000	RegSvcs.exe
4000	RegSvcs.exe
4000	RegSvcs.exe
4316	powershell.exe
4000	RegSvcs.exe
4000	RegSvcs.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe
2600	rundll32.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
4000	RegSvcs.exe
4000	RegSvcs.exe
4000	RegSvcs.exe
4000	RegSvcs.exe
2600	rundll32.exe
2600	rundll32.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	5060	19c20b84bd28cc534ea649747488dff45cb53539aaedc936ee2854f93cd6e368.exe
Token: SeDebugPrivilege	4316	powershell.exe
Token: SeDebugPrivilege	1520	powershell.exe
Token: SeDebugPrivilege	4000	RegSvcs.exe
Token: SeShutdownPrivilege	3500	Explorer.EXE
Token: SeCreatePagefilePrivilege	3500	Explorer.EXE
Token: SeShutdownPrivilege	3500	Explorer.EXE
Token: SeCreatePagefilePrivilege	3500	Explorer.EXE
Token: SeDebugPrivilege	2600	rundll32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
5060	19c20b84bd28cc534ea649747488dff45cb53539aaedc936ee2854f93cd6e368.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
5060	19c20b84bd28cc534ea649747488dff45cb53539aaedc936ee2854f93cd6e368.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3500	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 5060 wrote to memory of 1520	5060	19c20b84bd28cc534ea649747488dff45cb53539aaedc936ee2854f93cd6e368.exe	86
PID 5060 wrote to memory of 1520	5060	19c20b84bd28cc534ea649747488dff45cb53539aaedc936ee2854f93cd6e368.exe	86
PID 5060 wrote to memory of 1520	5060	19c20b84bd28cc534ea649747488dff45cb53539aaedc936ee2854f93cd6e368.exe	86
PID 5060 wrote to memory of 4316	5060	19c20b84bd28cc534ea649747488dff45cb53539aaedc936ee2854f93cd6e368.exe	88
PID 5060 wrote to memory of 4316	5060	19c20b84bd28cc534ea649747488dff45cb53539aaedc936ee2854f93cd6e368.exe	88
PID 5060 wrote to memory of 4316	5060	19c20b84bd28cc534ea649747488dff45cb53539aaedc936ee2854f93cd6e368.exe	88
PID 5060 wrote to memory of 3232	5060	19c20b84bd28cc534ea649747488dff45cb53539aaedc936ee2854f93cd6e368.exe	90
PID 5060 wrote to memory of 3232	5060	19c20b84bd28cc534ea649747488dff45cb53539aaedc936ee2854f93cd6e368.exe	90
PID 5060 wrote to memory of 3232	5060	19c20b84bd28cc534ea649747488dff45cb53539aaedc936ee2854f93cd6e368.exe	90
PID 5060 wrote to memory of 4000	5060	19c20b84bd28cc534ea649747488dff45cb53539aaedc936ee2854f93cd6e368.exe	92
PID 5060 wrote to memory of 4000	5060	19c20b84bd28cc534ea649747488dff45cb53539aaedc936ee2854f93cd6e368.exe	92
PID 5060 wrote to memory of 4000	5060	19c20b84bd28cc534ea649747488dff45cb53539aaedc936ee2854f93cd6e368.exe	92
PID 5060 wrote to memory of 4000	5060	19c20b84bd28cc534ea649747488dff45cb53539aaedc936ee2854f93cd6e368.exe	92
PID 5060 wrote to memory of 4000	5060	19c20b84bd28cc534ea649747488dff45cb53539aaedc936ee2854f93cd6e368.exe	92
PID 5060 wrote to memory of 4000	5060	19c20b84bd28cc534ea649747488dff45cb53539aaedc936ee2854f93cd6e368.exe	92
PID 3500 wrote to memory of 2600	3500	Explorer.EXE	93
PID 3500 wrote to memory of 2600	3500	Explorer.EXE	93
PID 3500 wrote to memory of 2600	3500	Explorer.EXE	93
PID 2600 wrote to memory of 1356	2600	rundll32.exe	94
PID 2600 wrote to memory of 1356	2600	rundll32.exe	94
PID 2600 wrote to memory of 1356	2600	rundll32.exe	94

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3500
- C:\Users\Admin\AppData\Local\Temp\19c20b84bd28cc534ea649747488dff45cb53539aaedc936ee2854f93cd6e368.exe
  "C:\Users\Admin\AppData\Local\Temp\19c20b84bd28cc534ea649747488dff45cb53539aaedc936ee2854f93cd6e368.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 FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:5060
- - 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\19c20b84bd28cc534ea649747488dff45cb53539aaedc936ee2854f93cd6e368.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1520
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\rBchflGYc.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4316
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rBchflGYc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFC52.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3232
- - 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:4000
- 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:2600
- - 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:1356

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
39eccf0f1158d2da6710803ad9d5edc0

SHA1
54df4c021f4f307f8db0b681b64caaa1fd5a93c7

SHA256
6dd0b82cc1097028c96166bc186b9792baa3476e0de2af43bf8ea92c6cb9e910

SHA512
3fa3ccbc741022671db8b61faa7943863fdd081aa88492a78c7fe68ee78bd38314939f9bb275fb29bf0bb1e4535e77572c1217a2d348fe448d0a88020e79965a

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_es0abv0d.exi.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpFC52.tmp

Filesize
1KB

MD5
1922615cf9715386e9b93feb2059f4da

SHA1
7305ef7424e5f94ad735afd19d05206715831518

SHA256
34f9b012384510cea8e046fcf21f425519e6f1124ad31b914cc2882a872e4b3b

SHA512
725419e8aeacfb7f2689e9f616933caa4a4b724138c814dacc7d4bbd4bcaefa8df70dafb1b5eeadb86c211baa26690a0197f48530127934aa1766673684c9805

Download Submit
memory/1520-65-0x00000000754A0000-0x00000000754EC000-memory.dmp

Filesize
304KB

Download
memory/1520-15-0x0000000004AA0000-0x0000000004AD6000-memory.dmp

Filesize
216KB

Download
memory/1520-89-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/1520-35-0x0000000005A20000-0x0000000005D74000-memory.dmp

Filesize
3.3MB

Download
memory/1520-83-0x0000000007680000-0x0000000007688000-memory.dmp

Filesize
32KB

Download
memory/1520-80-0x0000000007590000-0x000000000759E000-memory.dmp

Filesize
56KB

Download
memory/1520-49-0x0000000006040000-0x000000000605E000-memory.dmp

Filesize
120KB

Download
memory/1520-51-0x0000000006560000-0x00000000065AC000-memory.dmp

Filesize
304KB

Download
memory/1520-16-0x00000000051B0000-0x00000000057D8000-memory.dmp

Filesize
6.2MB

Download
memory/1520-17-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/1520-18-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/1520-19-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/2600-92-0x0000000000A40000-0x0000000000A54000-memory.dmp

Filesize
80KB

Download
memory/2600-94-0x0000000000A00000-0x0000000000A2F000-memory.dmp

Filesize
188KB

Download
memory/2600-93-0x0000000000A40000-0x0000000000A54000-memory.dmp

Filesize
80KB

Download
memory/3500-97-0x0000000002FE0000-0x000000000309E000-memory.dmp

Filesize
760KB

Download
memory/4000-46-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4000-91-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4316-76-0x0000000006FE0000-0x0000000006FFA000-memory.dmp

Filesize
104KB

Download
memory/4316-79-0x00000000071E0000-0x00000000071F1000-memory.dmp

Filesize
68KB

Download
memory/4316-22-0x0000000004C80000-0x0000000004CE6000-memory.dmp

Filesize
408KB

Download
memory/4316-21-0x0000000004BE0000-0x0000000004C02000-memory.dmp

Filesize
136KB

Download
memory/4316-23-0x0000000004DF0000-0x0000000004E56000-memory.dmp

Filesize
408KB

Download
memory/4316-90-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/4316-20-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/4316-53-0x00000000754A0000-0x00000000754EC000-memory.dmp

Filesize
304KB

Download
memory/4316-52-0x0000000006C30000-0x0000000006C62000-memory.dmp

Filesize
200KB

Download
memory/4316-63-0x0000000006C70000-0x0000000006C8E000-memory.dmp

Filesize
120KB

Download
memory/4316-64-0x0000000006CA0000-0x0000000006D43000-memory.dmp

Filesize
652KB

Download
memory/4316-77-0x0000000007050000-0x000000000705A000-memory.dmp

Filesize
40KB

Download
memory/4316-75-0x0000000007620000-0x0000000007C9A000-memory.dmp

Filesize
6.5MB

Download
memory/4316-34-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/4316-44-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/4316-78-0x0000000007260000-0x00000000072F6000-memory.dmp

Filesize
600KB

Download
memory/4316-82-0x0000000007320000-0x000000000733A000-memory.dmp

Filesize
104KB

Download
memory/4316-81-0x0000000007220000-0x0000000007234000-memory.dmp

Filesize
80KB

Download
memory/5060-9-0x0000000005040000-0x00000000050BA000-memory.dmp

Filesize
488KB

Download
memory/5060-6-0x0000000005B20000-0x0000000005B3E000-memory.dmp

Filesize
120KB

Download
memory/5060-8-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/5060-7-0x0000000074BFE000-0x0000000074BFF000-memory.dmp

Filesize
4KB

Download
memory/5060-10-0x000000000C980000-0x000000000CA1C000-memory.dmp

Filesize
624KB

Download
memory/5060-5-0x0000000005630000-0x000000000563A000-memory.dmp

Filesize
40KB

Download
memory/5060-48-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/5060-0-0x0000000074BFE000-0x0000000074BFF000-memory.dmp

Filesize
4KB

Download
memory/5060-4-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/5060-3-0x0000000005650000-0x00000000056E2000-memory.dmp

Filesize
584KB

Download
memory/5060-2-0x0000000005B60000-0x0000000006104000-memory.dmp

Filesize
5.6MB

Download
memory/5060-1-0x0000000000B90000-0x0000000000C3E000-memory.dmp

Filesize
696KB

Download