formbook | 7db35f373ff7a17469cf0e111a7ca2bc76bb172afe87d69e7ccfae173e7f6701

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-12-2024 18:42

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General

Target

Copia de transferencia bancaria.exe
Size

971KB
MD5

8ee464229bdaac78e1354a7ff334af85
SHA1

a566511090198f92b82e07c1675b256f6c91e923
SHA256

8095979c4153bbcced38a6ee12589fbb67f356535a91cf22e26413ee3f1c4e34
SHA512

836274df2b83188718400c22b71becbf445d2f128cdfbc342cb62cb3655cc70441a638705911c449f500748e7be13082a11ac4d261a03e9c805cdf10e3e1ab87
SSDEEP

12288:Ntcg0r9tDZddpnLnv2hVSKRytHxnrceHMcrIaPy1FTAUI4kSxv1/:Nt893hSh0K0pxVIaPy1FW41

Score

10^/10

formbook de19 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

de19

Decoy

predictivemedicine.life

coloringforthepeople.com

project154.com

usmmexchange.com

bootzxon.com

chaoge730.com

thenaci.com

moviestarplent.com

musicallyengaged.com

sneakerspark.net

yudist.com

apqrcx.xyz

traceless.tel

guardlanavionics.com

usadogrights.com

openei.club

aventusluxury.com

telewebin.com

godrej-threeparks.net

solbysol.com

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/2072-31-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2072-41-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3508-78-0x00000000005B0000-0x00000000005DF000-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
1372	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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	Copia de transferencia bancaria.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4000 set thread context of 2072	4000	Copia de transferencia bancaria.exe	95
PID 2072 set thread context of 3520	2072	RegSvcs.exe	56
PID 3508 set thread context of 3520	3508	chkdsk.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	Copia de transferencia bancaria.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	chkdsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.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
3996	schtasks.exe

Suspicious behavior: EnumeratesProcesses 46 IoCs

pid	Process
1372	powershell.exe
2072	RegSvcs.exe
2072	RegSvcs.exe
2072	RegSvcs.exe
2072	RegSvcs.exe
1372	powershell.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe
3508	chkdsk.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2072	RegSvcs.exe
2072	RegSvcs.exe
2072	RegSvcs.exe
3508	chkdsk.exe
3508	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1372	powershell.exe
Token: SeDebugPrivilege	2072	RegSvcs.exe
Token: SeDebugPrivilege	3508	chkdsk.exe
Token: SeShutdownPrivilege	3520	Explorer.EXE
Token: SeCreatePagefilePrivilege	3520	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4000 wrote to memory of 1372	4000	Copia de transferencia bancaria.exe	91
PID 4000 wrote to memory of 1372	4000	Copia de transferencia bancaria.exe	91
PID 4000 wrote to memory of 1372	4000	Copia de transferencia bancaria.exe	91
PID 4000 wrote to memory of 3996	4000	Copia de transferencia bancaria.exe	93
PID 4000 wrote to memory of 3996	4000	Copia de transferencia bancaria.exe	93
PID 4000 wrote to memory of 3996	4000	Copia de transferencia bancaria.exe	93
PID 4000 wrote to memory of 2072	4000	Copia de transferencia bancaria.exe	95
PID 4000 wrote to memory of 2072	4000	Copia de transferencia bancaria.exe	95
PID 4000 wrote to memory of 2072	4000	Copia de transferencia bancaria.exe	95
PID 4000 wrote to memory of 2072	4000	Copia de transferencia bancaria.exe	95
PID 4000 wrote to memory of 2072	4000	Copia de transferencia bancaria.exe	95
PID 4000 wrote to memory of 2072	4000	Copia de transferencia bancaria.exe	95
PID 3520 wrote to memory of 3508	3520	Explorer.EXE	96
PID 3520 wrote to memory of 3508	3520	Explorer.EXE	96
PID 3520 wrote to memory of 3508	3520	Explorer.EXE	96
PID 3508 wrote to memory of 4288	3508	chkdsk.exe	97
PID 3508 wrote to memory of 4288	3508	chkdsk.exe	97
PID 3508 wrote to memory of 4288	3508	chkdsk.exe	97

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3520
- C:\Users\Admin\AppData\Local\Temp\Copia de transferencia bancaria.exe
  "C:\Users\Admin\AppData\Local\Temp\Copia de transferencia bancaria.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4000
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\inKcSqSKZsI.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1372
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\inKcSqSKZsI" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2E4E.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3996
- - 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:2072
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3508
- - 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:4288

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ay5om4ps.nqc.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp2E4E.tmp

Filesize
1KB

MD5
61fd853d7ec0636f149a48080163aab5

SHA1
1b112991e939c33f0104a3f78f1c2bc399536c4a

SHA256
dee1322cf7c216ef27803ea6d48b02510d85720f032196dbe064744e52fe5313

SHA512
f046b0fdb64ff68c5b84c1e8946c84348879ffe1d2fc6326245ab684493006dd8b56d49c74b78daa568865c730f23759bb3248b3a2e0bccf2e6292a51899c05e

Download Submit
memory/1372-62-0x0000000007A20000-0x000000000809A000-memory.dmp

Filesize
6.5MB

Download
memory/1372-72-0x0000000007620000-0x0000000007634000-memory.dmp

Filesize
80KB

Download
memory/1372-44-0x0000000006150000-0x000000000619C000-memory.dmp

Filesize
304KB

Download
memory/1372-74-0x0000000007700000-0x0000000007708000-memory.dmp

Filesize
32KB

Download
memory/1372-73-0x0000000007720000-0x000000000773A000-memory.dmp

Filesize
104KB

Download
memory/1372-71-0x0000000007610000-0x000000000761E000-memory.dmp

Filesize
56KB

Download
memory/1372-69-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/1372-70-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/1372-68-0x00000000075E0000-0x00000000075F1000-memory.dmp

Filesize
68KB

Download
memory/1372-65-0x0000000007660000-0x00000000076F6000-memory.dmp

Filesize
600KB

Download
memory/1372-64-0x0000000007450000-0x000000000745A000-memory.dmp

Filesize
40KB

Download
memory/1372-17-0x0000000004B50000-0x0000000004B86000-memory.dmp

Filesize
216KB

Download
memory/1372-18-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/1372-19-0x00000000051C0000-0x00000000057E8000-memory.dmp

Filesize
6.2MB

Download
memory/1372-63-0x00000000073E0000-0x00000000073FA000-memory.dmp

Filesize
104KB

Download
memory/1372-20-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/1372-23-0x0000000005090000-0x00000000050F6000-memory.dmp

Filesize
408KB

Download
memory/1372-22-0x0000000004FE0000-0x0000000005002000-memory.dmp

Filesize
136KB

Download
memory/1372-24-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/1372-61-0x0000000002770000-0x0000000002780000-memory.dmp

Filesize
64KB

Download
memory/1372-60-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/1372-37-0x0000000005A60000-0x0000000005DB4000-memory.dmp

Filesize
3.3MB

Download
memory/1372-58-0x0000000006660000-0x000000000667E000-memory.dmp

Filesize
120KB

Download
memory/1372-59-0x00000000070B0000-0x0000000007153000-memory.dmp

Filesize
652KB

Download
memory/1372-48-0x0000000075100000-0x000000007514C000-memory.dmp

Filesize
304KB

Download
memory/1372-47-0x0000000006680000-0x00000000066B2000-memory.dmp

Filesize
200KB

Download
memory/1372-46-0x000000007FC80000-0x000000007FC90000-memory.dmp

Filesize
64KB

Download
memory/1372-77-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/1372-43-0x00000000060C0000-0x00000000060DE000-memory.dmp

Filesize
120KB

Download
memory/2072-31-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2072-41-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2072-42-0x0000000001250000-0x0000000001264000-memory.dmp

Filesize
80KB

Download
memory/2072-39-0x0000000001700000-0x0000000001A4A000-memory.dmp

Filesize
3.3MB

Download
memory/3508-67-0x0000000000800000-0x000000000080A000-memory.dmp

Filesize
40KB

Download
memory/3508-66-0x0000000000800000-0x000000000080A000-memory.dmp

Filesize
40KB

Download
memory/3508-78-0x00000000005B0000-0x00000000005DF000-memory.dmp

Filesize
188KB

Download
memory/3520-83-0x00000000028F0000-0x00000000029B3000-memory.dmp

Filesize
780KB

Download
memory/3520-45-0x0000000008580000-0x0000000008726000-memory.dmp

Filesize
1.6MB

Download
memory/4000-1-0x0000000000260000-0x000000000035A000-memory.dmp

Filesize
1000KB

Download
memory/4000-8-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/4000-2-0x0000000005250000-0x00000000057F4000-memory.dmp

Filesize
5.6MB

Download
memory/4000-11-0x0000000007DD0000-0x0000000007E6C000-memory.dmp

Filesize
624KB

Download
memory/4000-25-0x0000000006040000-0x00000000060AC000-memory.dmp

Filesize
432KB

Download
memory/4000-10-0x0000000007C40000-0x0000000007D04000-memory.dmp

Filesize
784KB

Download
memory/4000-9-0x0000000004FF0000-0x0000000004FFC000-memory.dmp

Filesize
48KB

Download
memory/4000-15-0x0000000007EE0000-0x0000000007F46000-memory.dmp

Filesize
408KB

Download
memory/4000-7-0x000000007487E000-0x000000007487F000-memory.dmp

Filesize
4KB

Download
memory/4000-0-0x000000007487E000-0x000000007487F000-memory.dmp

Filesize
4KB

Download
memory/4000-6-0x0000000004FE0000-0x0000000004FF4000-memory.dmp

Filesize
80KB

Download
memory/4000-5-0x0000000004ED0000-0x0000000004EDA000-memory.dmp

Filesize
40KB

Download
memory/4000-4-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/4000-38-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/4000-3-0x0000000004D40000-0x0000000004DD2000-memory.dmp

Filesize
584KB

Download