formbook | 7157f19969ea92bb660c62b91144ca8be1d6f1631252c7d1f7125fd957a1cde6

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
05-02-2025 03:51

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General

Target

7157f19969ea92bb660c62b91144ca8be1d6f1631252c7d1f7125fd957a1cde6.exe
Size

837KB
MD5

db6dfd16b1ac39947a9063aa6326bf43
SHA1

e03b5175355d7c413111e23b7fdaa5c84d563ec1
SHA256

7157f19969ea92bb660c62b91144ca8be1d6f1631252c7d1f7125fd957a1cde6
SHA512

3a21778799366577d05001f1936087a6de552844c9c0ceb43bf2f5b12d0d476299606d1718e08e91a620fcd4598fc65c2ef080b8bad567ba540e19171da876ff
SSDEEP

24576:A86weWVAgchq2p7PH9Kb61xFYJH63h/eZ:ABwnAxh7pxm616U9e

Score

10^/10

formbook k15k discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

k15k

Decoy

herise.charity

esign-creafactory.store

ldjo.info

9603.pizza

nmap.biz

agnacavalcante.shop

iversidepumpmfg.shop

bcpoz.xyz

lange.store

nfovps.net

ihlj.info

uxury29.net

mergence.fun

oftware-download-49753.bond

amblingsystems.info

tpkoinhoki88.xyz

adecepuffbar.net

emorymakers.travel

azurite.icu

nstantquote.xyz

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/4876-22-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4876-39-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2540-74-0x0000000000B70000-0x0000000000B9F000-memory.dmp	formbook

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

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

execution

PowerShell

T1059.001

pid	Process
5028	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-1-5-21-1412605595-2147700071-3468511006-1000\Control Panel\International\Geo\Nation	7157f19969ea92bb660c62b91144ca8be1d6f1631252c7d1f7125fd957a1cde6.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4044 set thread context of 4876	4044	7157f19969ea92bb660c62b91144ca8be1d6f1631252c7d1f7125fd957a1cde6.exe	94
PID 4876 set thread context of 3384	4876	RegSvcs.exe	56
PID 2540 set thread context of 3384	2540	msiexec.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 5 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	7157f19969ea92bb660c62b91144ca8be1d6f1631252c7d1f7125fd957a1cde6.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	msiexec.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
4564	schtasks.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
4044	7157f19969ea92bb660c62b91144ca8be1d6f1631252c7d1f7125fd957a1cde6.exe
5028	powershell.exe
4044	7157f19969ea92bb660c62b91144ca8be1d6f1631252c7d1f7125fd957a1cde6.exe
4044	7157f19969ea92bb660c62b91144ca8be1d6f1631252c7d1f7125fd957a1cde6.exe
4044	7157f19969ea92bb660c62b91144ca8be1d6f1631252c7d1f7125fd957a1cde6.exe
4876	RegSvcs.exe
4876	RegSvcs.exe
4876	RegSvcs.exe
4876	RegSvcs.exe
5028	powershell.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe
2540	msiexec.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4876	RegSvcs.exe
4876	RegSvcs.exe
4876	RegSvcs.exe
2540	msiexec.exe
2540	msiexec.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4044	7157f19969ea92bb660c62b91144ca8be1d6f1631252c7d1f7125fd957a1cde6.exe
Token: SeDebugPrivilege	5028	powershell.exe
Token: SeDebugPrivilege	4876	RegSvcs.exe
Token: SeDebugPrivilege	2540	msiexec.exe
Token: SeShutdownPrivilege	3384	Explorer.EXE
Token: SeCreatePagefilePrivilege	3384	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3384	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4044 wrote to memory of 5028	4044	7157f19969ea92bb660c62b91144ca8be1d6f1631252c7d1f7125fd957a1cde6.exe	89
PID 4044 wrote to memory of 5028	4044	7157f19969ea92bb660c62b91144ca8be1d6f1631252c7d1f7125fd957a1cde6.exe	89
PID 4044 wrote to memory of 5028	4044	7157f19969ea92bb660c62b91144ca8be1d6f1631252c7d1f7125fd957a1cde6.exe	89
PID 4044 wrote to memory of 4564	4044	7157f19969ea92bb660c62b91144ca8be1d6f1631252c7d1f7125fd957a1cde6.exe	91
PID 4044 wrote to memory of 4564	4044	7157f19969ea92bb660c62b91144ca8be1d6f1631252c7d1f7125fd957a1cde6.exe	91
PID 4044 wrote to memory of 4564	4044	7157f19969ea92bb660c62b91144ca8be1d6f1631252c7d1f7125fd957a1cde6.exe	91
PID 4044 wrote to memory of 3928	4044	7157f19969ea92bb660c62b91144ca8be1d6f1631252c7d1f7125fd957a1cde6.exe	93
PID 4044 wrote to memory of 3928	4044	7157f19969ea92bb660c62b91144ca8be1d6f1631252c7d1f7125fd957a1cde6.exe	93
PID 4044 wrote to memory of 3928	4044	7157f19969ea92bb660c62b91144ca8be1d6f1631252c7d1f7125fd957a1cde6.exe	93
PID 4044 wrote to memory of 4876	4044	7157f19969ea92bb660c62b91144ca8be1d6f1631252c7d1f7125fd957a1cde6.exe	94
PID 4044 wrote to memory of 4876	4044	7157f19969ea92bb660c62b91144ca8be1d6f1631252c7d1f7125fd957a1cde6.exe	94
PID 4044 wrote to memory of 4876	4044	7157f19969ea92bb660c62b91144ca8be1d6f1631252c7d1f7125fd957a1cde6.exe	94
PID 4044 wrote to memory of 4876	4044	7157f19969ea92bb660c62b91144ca8be1d6f1631252c7d1f7125fd957a1cde6.exe	94
PID 4044 wrote to memory of 4876	4044	7157f19969ea92bb660c62b91144ca8be1d6f1631252c7d1f7125fd957a1cde6.exe	94
PID 4044 wrote to memory of 4876	4044	7157f19969ea92bb660c62b91144ca8be1d6f1631252c7d1f7125fd957a1cde6.exe	94
PID 3384 wrote to memory of 2540	3384	Explorer.EXE	95
PID 3384 wrote to memory of 2540	3384	Explorer.EXE	95
PID 3384 wrote to memory of 2540	3384	Explorer.EXE	95
PID 2540 wrote to memory of 4356	2540	msiexec.exe	96
PID 2540 wrote to memory of 4356	2540	msiexec.exe	96
PID 2540 wrote to memory of 4356	2540	msiexec.exe	96

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3384
- C:\Users\Admin\AppData\Local\Temp\7157f19969ea92bb660c62b91144ca8be1d6f1631252c7d1f7125fd957a1cde6.exe
  "C:\Users\Admin\AppData\Local\Temp\7157f19969ea92bb660c62b91144ca8be1d6f1631252c7d1f7125fd957a1cde6.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:4044
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\IzffNhTB.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:5028
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\IzffNhTB" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC822.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4564
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    PID:3928
- - 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:4876
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.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:2540
- - 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:4356

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\Temp\__PSScriptPolicyTest_f2we4flc.p5d.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC822.tmp

Filesize
1KB

MD5
b6b93d4ced91c864b750532ed07f0bf0

SHA1
8978405e594661c47f89129e198cff8d83c25cf9

SHA256
9ed67d10a9ebcdf5c6176dc4ba0991278713d7c4599f5a0556ab33f776fa31ea

SHA512
0d4e0f6bc9b4c016dfad300c362a0ea98c96e03ac290a16dae8376737a059fe35e59ded40f26b3ff0416e237c5ce14316030ab3a6d5aed58ccd603a0db492655

Download Submit
memory/2540-62-0x0000000001000000-0x0000000001012000-memory.dmp

Filesize
72KB

Download
memory/2540-65-0x0000000001000000-0x0000000001012000-memory.dmp

Filesize
72KB

Download
memory/2540-63-0x0000000001000000-0x0000000001012000-memory.dmp

Filesize
72KB

Download
memory/2540-74-0x0000000000B70000-0x0000000000B9F000-memory.dmp

Filesize
188KB

Download
memory/3384-78-0x0000000002F70000-0x00000000030C5000-memory.dmp

Filesize
1.3MB

Download
memory/3384-82-0x0000000008870000-0x00000000089F6000-memory.dmp

Filesize
1.5MB

Download
memory/3384-41-0x0000000002F70000-0x00000000030C5000-memory.dmp

Filesize
1.3MB

Download
memory/4044-8-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/4044-5-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/4044-9-0x0000000002EB0000-0x0000000002F2A000-memory.dmp

Filesize
488KB

Download
memory/4044-4-0x00000000056B0000-0x00000000056BA000-memory.dmp

Filesize
40KB

Download
memory/4044-3-0x0000000005610000-0x00000000056A2000-memory.dmp

Filesize
584KB

Download
memory/4044-7-0x0000000074DBE000-0x0000000074DBF000-memory.dmp

Filesize
4KB

Download
memory/4044-6-0x00000000058F0000-0x000000000590E000-memory.dmp

Filesize
120KB

Download
memory/4044-10-0x000000000D750000-0x000000000D7EC000-memory.dmp

Filesize
624KB

Download
memory/4044-2-0x0000000005CA0000-0x0000000006244000-memory.dmp

Filesize
5.6MB

Download
memory/4044-0-0x0000000074DBE000-0x0000000074DBF000-memory.dmp

Filesize
4KB

Download
memory/4044-36-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/4044-1-0x0000000000B50000-0x0000000000C28000-memory.dmp

Filesize
864KB

Download
memory/4876-39-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4876-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4876-37-0x00000000011A0000-0x00000000014EA000-memory.dmp

Filesize
3.3MB

Download
memory/4876-40-0x0000000000FA0000-0x0000000000FB5000-memory.dmp

Filesize
84KB

Download
memory/5028-18-0x0000000004E00000-0x0000000005428000-memory.dmp

Filesize
6.2MB

Download
memory/5028-66-0x00000000071F0000-0x0000000007286000-memory.dmp

Filesize
600KB

Download
memory/5028-24-0x0000000005610000-0x0000000005676000-memory.dmp

Filesize
408KB

Download
memory/5028-42-0x0000000005C50000-0x0000000005C6E000-memory.dmp

Filesize
120KB

Download
memory/5028-43-0x0000000005CE0000-0x0000000005D2C000-memory.dmp

Filesize
304KB

Download
memory/5028-44-0x000000007FAC0000-0x000000007FAD0000-memory.dmp

Filesize
64KB

Download
memory/5028-45-0x0000000006240000-0x0000000006272000-memory.dmp

Filesize
200KB

Download
memory/5028-46-0x0000000075640000-0x000000007568C000-memory.dmp

Filesize
304KB

Download
memory/5028-56-0x0000000002440000-0x0000000002450000-memory.dmp

Filesize
64KB

Download
memory/5028-57-0x00000000061F0000-0x000000000620E000-memory.dmp

Filesize
120KB

Download
memory/5028-58-0x0000000006E30000-0x0000000006ED3000-memory.dmp

Filesize
652KB

Download
memory/5028-59-0x00000000075B0000-0x0000000007C2A000-memory.dmp

Filesize
6.5MB

Download
memory/5028-60-0x0000000006F70000-0x0000000006F8A000-memory.dmp

Filesize
104KB

Download
memory/5028-61-0x0000000006FE0000-0x0000000006FEA000-memory.dmp

Filesize
40KB

Download
memory/5028-23-0x00000000055A0000-0x0000000005606000-memory.dmp

Filesize
408KB

Download
memory/5028-31-0x0000000005680000-0x00000000059D4000-memory.dmp

Filesize
3.3MB

Download
memory/5028-20-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/5028-21-0x0000000004CA0000-0x0000000004CC2000-memory.dmp

Filesize
136KB

Download
memory/5028-67-0x0000000007170000-0x0000000007181000-memory.dmp

Filesize
68KB

Download
memory/5028-68-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/5028-69-0x00000000071A0000-0x00000000071AE000-memory.dmp

Filesize
56KB

Download
memory/5028-70-0x00000000071B0000-0x00000000071C4000-memory.dmp

Filesize
80KB

Download
memory/5028-71-0x00000000072B0000-0x00000000072CA000-memory.dmp

Filesize
104KB

Download
memory/5028-72-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/5028-73-0x0000000007290000-0x0000000007298000-memory.dmp

Filesize
32KB

Download
memory/5028-19-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/5028-77-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/5028-17-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/5028-15-0x0000000002370000-0x00000000023A6000-memory.dmp

Filesize
216KB

Download