formbook | 02500b9058612028c5667bfd9302d81184689fcb88eb5500902d39baec246fa0

Resubmissions

26/07/2024, 12:14

240726-persfs1alb 10

Analysis

max time kernel
297s
max time network
296s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
26/07/2024, 12:14

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General

Target

TNS71092E68UI0.vbe
Size

785KB
MD5

83ef588dc92a85ef93d055290393a07d
SHA1

c7fa54bb9f8d5467137197b8e344b95d2e1f4430
SHA256

02500b9058612028c5667bfd9302d81184689fcb88eb5500902d39baec246fa0
SHA512

eb1adad95a1269dd49e202e966b67a8d3867055c1462687596fa47dd133929544a295e2e3b04f8bfe3c87690d241f780f4a1ad75718e462b468007e3e8dd0827
SSDEEP

12288:WEPXAjdRFEYFexVioNs4tkt4pNVZUAZTklPuAGPm1LEKIV8rrq9bbeQnhG4Shmo9:nPXApEY0ioCUpNV+unrKs869FE5hmo9

Score

10^/10

formbook de94 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

de94

Decoy

way2future.net

worldnewsdailys.online

rendamaisbr.com

s485.icu

vcxwpo.xyz

imagivilleartists.com

herbatyorganics.com

xn--80ado1abokv5d.xn--p1acf

invigoratewell.com

especialistaleitura.online

pkrstg.com

performacaretechnical.com

dreamgame55.net

hkitgugx.xyz

istanlikbilgiler.click

slotter99j.vip

exploringtheoutdoors.net

triberoots.com

energiaslotsbet.com

dkforcm.com

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/4940-21-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4940-27-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4460-32-0x0000000000E50000-0x0000000000E7F000-memory.dmp	formbook

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-1-5-21-3419463127-3903270268-2580331543-1000\Control Panel\International\Geo\Nation	WScript.exe

Executes dropped EXE 2 IoCs

pid	Process
4332	HHhHh.exe
4940	HHhHh.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4332 set thread context of 4940	4332	HHhHh.exe	95
PID 4940 set thread context of 3444	4940	HHhHh.exe	56
PID 4460 set thread context of 3444	4460	control.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 3 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	HHhHh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	control.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-3419463127-3903270268-2580331543-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4940	HHhHh.exe
4940	HHhHh.exe
4940	HHhHh.exe
4940	HHhHh.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe
4460	control.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4940	HHhHh.exe
4940	HHhHh.exe
4940	HHhHh.exe
4460	control.exe
4460	control.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	4940	HHhHh.exe
Token: SeDebugPrivilege	4460	control.exe
Token: SeShutdownPrivilege	3444	Explorer.EXE
Token: SeCreatePagefilePrivilege	3444	Explorer.EXE
Token: SeShutdownPrivilege	3444	Explorer.EXE
Token: SeCreatePagefilePrivilege	3444	Explorer.EXE
Token: SeShutdownPrivilege	3444	Explorer.EXE
Token: SeCreatePagefilePrivilege	3444	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3444	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4436 wrote to memory of 4332	4436	WScript.exe	84
PID 4436 wrote to memory of 4332	4436	WScript.exe	84
PID 4436 wrote to memory of 4332	4436	WScript.exe	84
PID 4332 wrote to memory of 4940	4332	HHhHh.exe	95
PID 4332 wrote to memory of 4940	4332	HHhHh.exe	95
PID 4332 wrote to memory of 4940	4332	HHhHh.exe	95
PID 4332 wrote to memory of 4940	4332	HHhHh.exe	95
PID 4332 wrote to memory of 4940	4332	HHhHh.exe	95
PID 4332 wrote to memory of 4940	4332	HHhHh.exe	95
PID 3444 wrote to memory of 4460	3444	Explorer.EXE	96
PID 3444 wrote to memory of 4460	3444	Explorer.EXE	96
PID 3444 wrote to memory of 4460	3444	Explorer.EXE	96
PID 4460 wrote to memory of 1160	4460	control.exe	97
PID 4460 wrote to memory of 1160	4460	control.exe	97
PID 4460 wrote to memory of 1160	4460	control.exe	97

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3444
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\TNS71092E68UI0.vbe"
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:4436
- - C:\Users\Admin\AppData\Local\Temp\HHhHh.exe
    "C:\Users\Admin\AppData\Local\Temp\HHhHh.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4332
  - - C:\Users\Admin\AppData\Local\Temp\HHhHh.exe
      "C:\Users\Admin\AppData\Local\Temp\HHhHh.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:4940
- C:\Windows\SysWOW64\control.exe
  "C:\Windows\SysWOW64\control.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:4460
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\HHhHh.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1160

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

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\HHhHh.exe

Filesize
561KB

MD5
62fa567cbb7227aeb7755b679d780725

SHA1
0280d019165f8df6b76cfa87047c76d9003ab193

SHA256
7b67dc6ad75a054a5baaff1cb3e61c2436823de4fd80b6e73cd9cbbb850f6d81

SHA512
ceb8059393dbf6b2e55fe324fc957a319223508162cb278fa3a48a849b2c77d2aab285b91c3a122c56c72d2819ce24a18b02bc2bf83963634f083929e74b1b01

Download Submit
memory/3444-37-0x00000000036F0000-0x00000000037C7000-memory.dmp

Filesize
860KB

Download
memory/3444-35-0x00000000033B0000-0x00000000034B0000-memory.dmp

Filesize
1024KB

Download
memory/3444-29-0x00000000033B0000-0x00000000034B0000-memory.dmp

Filesize
1024KB

Download
memory/4332-20-0x0000000009D10000-0x0000000009DAC000-memory.dmp

Filesize
624KB

Download
memory/4332-13-0x0000000005190000-0x0000000005734000-memory.dmp

Filesize
5.6MB

Download
memory/4332-15-0x0000000004CA0000-0x0000000004CAA000-memory.dmp

Filesize
40KB

Download
memory/4332-17-0x0000000005180000-0x000000000518E000-memory.dmp

Filesize
56KB

Download
memory/4332-18-0x0000000005E40000-0x0000000005E4E000-memory.dmp

Filesize
56KB

Download
memory/4332-19-0x0000000005E70000-0x0000000005EE6000-memory.dmp

Filesize
472KB

Download
memory/4332-14-0x0000000004BE0000-0x0000000004C72000-memory.dmp

Filesize
584KB

Download
memory/4332-11-0x00000000750BE000-0x00000000750BF000-memory.dmp

Filesize
4KB

Download
memory/4332-24-0x00000000750B0000-0x0000000075860000-memory.dmp

Filesize
7.7MB

Download
memory/4332-12-0x0000000000160000-0x00000000001F2000-memory.dmp

Filesize
584KB

Download
memory/4332-16-0x00000000750B0000-0x0000000075860000-memory.dmp

Filesize
7.7MB

Download
memory/4460-30-0x0000000000FA0000-0x0000000000FC7000-memory.dmp

Filesize
156KB

Download
memory/4460-31-0x0000000000FA0000-0x0000000000FC7000-memory.dmp

Filesize
156KB

Download
memory/4460-32-0x0000000000E50000-0x0000000000E7F000-memory.dmp

Filesize
188KB

Download
memory/4940-27-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4940-28-0x0000000001020000-0x0000000001034000-memory.dmp

Filesize
80KB

Download
memory/4940-25-0x00000000012F0000-0x000000000163A000-memory.dmp

Filesize
3.3MB

Download
memory/4940-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download