formbook | e0e11ce8bf86f5cd9900d04a5d390acd8370003735d89cf716057f898c85ba39

Analysis

max time kernel
147s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24-12-2024 01:27

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General

Target

textttr4809.exe
Size

1.2MB
MD5

6a85b6fadb20c016b98e8ba0fcdfcc44
SHA1

c5c423ccfd6539ba04f56221bbb79c83baa93be4
SHA256

b4855381993299ec39524043aa7f8898a4fe64524ab943bc1db297f62c181824
SHA512

3e5827593da1dd78df4776ddc35f519791ea45ffa6d6d371b6b531ca4b0a030b2d8c296e093488beda886ad652e281c32f7aa830d57523730287c53621327e5a
SSDEEP

24576:0AOcZ2i7uyaiDbX1Z0JsyNVaCpaQj5HUSIOg0+MkYGEy:igDbX1asyiCcw5HPnS

Score

10^/10

formbook t01w discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

t01w

Decoy

yeluzishiyanshi.com

thehardtech.xyz

arrowheadk8.site

zaulkunutila.xyz

lookastro.net

congregorecruitment.co.uk

darcyboo.uk

collettesbet.net

ltgpd.com

hiddenapphq.net

haxtrl.online

esenbook.com

jxzyyx.com

ulvabuyout.xyz

instashop.life

vazra.top

ewdvatcuce4.top

zhishi68.com

fabricsandfashion.com

hootcaster.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/364-59-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/364-61-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/656-63-0x00000000003D0000-0x00000000003FF000-memory.dmp	formbook

Checks computer location settings 2 TTPs 2 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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	textttr4809.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	WScript.exe

Executes dropped EXE 1 IoCs

pid	Process
3532	eqxppmhfrn.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 3532 set thread context of 364	3532	eqxppmhfrn.exe	86
PID 364 set thread context of 3540	364	RegSvcs.exe	56
PID 364 set thread context of 3540	364	RegSvcs.exe	56
PID 656 set thread context of 3540	656	wscript.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	textttr4809.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eqxppmhfrn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wscript.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\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	WScript.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000_Classes\Local Settings	textttr4809.exe

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
364	RegSvcs.exe
364	RegSvcs.exe
364	RegSvcs.exe
364	RegSvcs.exe
364	RegSvcs.exe
364	RegSvcs.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe
656	wscript.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
364	RegSvcs.exe
364	RegSvcs.exe
364	RegSvcs.exe
364	RegSvcs.exe
656	wscript.exe
656	wscript.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	364	RegSvcs.exe
Token: SeShutdownPrivilege	3540	Explorer.EXE
Token: SeCreatePagefilePrivilege	3540	Explorer.EXE
Token: SeShutdownPrivilege	3540	Explorer.EXE
Token: SeCreatePagefilePrivilege	3540	Explorer.EXE
Token: SeDebugPrivilege	656	wscript.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 920 wrote to memory of 4580	920	textttr4809.exe	83
PID 920 wrote to memory of 4580	920	textttr4809.exe	83
PID 920 wrote to memory of 4580	920	textttr4809.exe	83
PID 4580 wrote to memory of 3532	4580	WScript.exe	84
PID 4580 wrote to memory of 3532	4580	WScript.exe	84
PID 4580 wrote to memory of 3532	4580	WScript.exe	84
PID 3532 wrote to memory of 2436	3532	eqxppmhfrn.exe	85
PID 3532 wrote to memory of 2436	3532	eqxppmhfrn.exe	85
PID 3532 wrote to memory of 2436	3532	eqxppmhfrn.exe	85
PID 3532 wrote to memory of 364	3532	eqxppmhfrn.exe	86
PID 3532 wrote to memory of 364	3532	eqxppmhfrn.exe	86
PID 3532 wrote to memory of 364	3532	eqxppmhfrn.exe	86
PID 3532 wrote to memory of 364	3532	eqxppmhfrn.exe	86
PID 3532 wrote to memory of 364	3532	eqxppmhfrn.exe	86
PID 3532 wrote to memory of 364	3532	eqxppmhfrn.exe	86
PID 3540 wrote to memory of 656	3540	Explorer.EXE	93
PID 3540 wrote to memory of 656	3540	Explorer.EXE	93
PID 3540 wrote to memory of 656	3540	Explorer.EXE	93
PID 656 wrote to memory of 644	656	wscript.exe	96
PID 656 wrote to memory of 644	656	wscript.exe	96
PID 656 wrote to memory of 644	656	wscript.exe	96

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3540
- C:\Users\Admin\AppData\Local\Temp\textttr4809.exe
  "C:\Users\Admin\AppData\Local\Temp\textttr4809.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:920
- - C:\Windows\SysWOW64\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\temp\6_45\fmgnrws.vbe"
    3⤵
    - Checks computer location settings
    - System Location Discovery: System Language Discovery
    - Modifies registry class
    - Suspicious use of WriteProcessMemory
    PID:4580
  - - C:\Users\Admin\AppData\Local\Temp\6_45\eqxppmhfrn.exe
      "C:\Users\Admin\AppData\Local\Temp\6_45\eqxppmhfrn.exe" rpvqetvcc.rsk
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:3532
    - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        5⤵
        
        PID:2436
    - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        5⤵
        Suspicious use of SetThreadContext
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: MapViewOfSection
        Suspicious use of AdjustPrivilegeToken
        
        PID:364
- C:\Windows\SysWOW64\wscript.exe
  "C:\Windows\SysWOW64\wscript.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:656
- - 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:644

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\6_45\eqxppmhfrn.exe

Filesize
1.1MB

MD5
b5b4f7b97106aff4bd860cff0e13dcdc

SHA1
42ca977e0d14bde5d5831b7fe10f516186df3fc5

SHA256
1dbad30b09c655ff987f25c312f56e9695d60105c240686d05d33941c854fa73

SHA512
3e6742aea38c0cbfee8e5cb8f11d328c947c7e4fcca4604b498a7e254aacfe53cc8fc6171d5ed2db7755abb510c09036bfbb1e5a9d9b7b47a587b43c828e3185

Download Submit
C:\Users\Admin\AppData\Local\Temp\6_45\jbufkwuago.miw

Filesize
370KB

MD5
7883104f51596624976b564ab1a3a5c7

SHA1
1ebf56538a1d8fe0ed13f1e074ba465faba1ef5f

SHA256
d7a503112b68914903fd208884e795e98098bb4685f60dec200657e74e5b08a9

SHA512
7aacb5c5f9825f7c3b0bd8ccb8934efb4ecbc6743c479a739b41ba353f54c903a4e881a9ecec3097cc4c76c26c24664ce4fd1f216d6185515086aa9aed103f63

Download Submit
C:\Users\Admin\AppData\Local\Temp\6_45\skccbj.exe

Filesize
41KB

MD5
4fac2ebfd126cf6f3366cff8d58bf824

SHA1
bcb12134483fbc145a289264a0d8da377009c83b

SHA256
58a41f014c688847cd1c00cf3bc7300192c68836959276a19e6d619f27bc8ed7

SHA512
4a0b26c48d326b220030ffffec69f16caa4bad33a7c597f4e7b1e6c3c55b77fb3d74fc2c3a867f8267de67c09d7ac7070be7eb8e2fe42285d7a0481f1743ff0e

Download Submit
C:\Users\Admin\AppData\Local\temp\6_45\fmgnrws.vbe

Filesize
32KB

MD5
1cad0d875a47ce40af10e4bcd8610ac3

SHA1
1c7c64399eecb7947b66105f2b0c70e8f962460f

SHA256
131267eba948a969bb7464035b59f226eca0c17193ec2d491717647dcc1db118

SHA512
a4fb08788fc5c7b450e8ff861f24d4a7d60f730a1188b809b07e8e7e17f3c478b70f4f10f92ad7dde467fe31a0b640a7cc4ecbcd24d10925bc8f2fa3ece2abe4

Download Submit
memory/364-59-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/364-61-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/656-62-0x0000000000620000-0x0000000000647000-memory.dmp

Filesize
156KB

Download
memory/656-63-0x00000000003D0000-0x00000000003FF000-memory.dmp

Filesize
188KB

Download
memory/3540-67-0x0000000007610000-0x00000000076BD000-memory.dmp

Filesize
692KB

Download