formbook | 0a940798457e134b2fadd4709c35e76a9499ba49ac295636bd200af9cc9f2b09

General

Target

REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
Size

645KB
MD5

c3281495a49edbf811f733f22553dc22
SHA1

b0d1a4e2d5301a83e0233079ee98895f6b0ecd53
SHA256

7233b29d1b7129ad7c3466a94f7e608ab6673335dd4654063aab1d0b5422e973
SHA512

91f8eb526b13779529467cc02aa20a1889515682a6968ff97871c8e9a7da2a5518d1d1562d824b7744b65e3e1d235d1c0b5b3ce456c65be6fedfbebe9b70387e
SSDEEP

12288:6cwtKGfPSDKDJwrnixtgw1Na3i/PLa7wTJerx8CHH4WD/Mz4iVQdC:B3GHVJw0tgSsUPLCuJkp7rMzFx

Score

10^/10

formbook stg discovery persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

stg

Decoy

kralhandyrepair.com

find-r.net

ranggainn.com

gstv.fan

franklinimarshallboutique.com

q2gx75.com

detroitwingshop.com

quarnteacher.net

magicskydaddy.com

happenutem.com

trinity-safety.net

lovelocalliving.com

deyingmall.com

symbioticenterprise.com

dianahimmelreich.com

portalsemilla.com

girlswhohoop.com

everyonepharmaacademy.com

goimelink.com

kpasanow.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/4004-16-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/4004-21-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/4004-25-0x0000000000400000-0x000000000042E000-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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\TX7XB4GXKDNX = "C:\\Program Files (x86)\\Vnx6hzl58\\uv0xnwdcx.exe"	explorer.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1032 set thread context of 4004	1032	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe	101
PID 4004 set thread context of 3412	4004	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe	56
PID 4004 set thread context of 3412	4004	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe	56
PID 3444 set thread context of 3412	3444	explorer.exe	56

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Vnx6hzl58\uv0xnwdcx.exe	explorer.exe

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	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	explorer.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
3460	schtasks.exe

Suspicious behavior: EnumeratesProcesses 46 IoCs

pid	Process
1032	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
1032	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
1032	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
1032	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
4004	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
4004	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
4004	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
4004	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
4004	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
4004	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe

Suspicious behavior: MapViewOfSection 8 IoCs

pid	Process
4004	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
4004	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
4004	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
4004	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe
3444	explorer.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	1032	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
Token: SeDebugPrivilege	4004	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
Token: SeDebugPrivilege	3444	explorer.exe
Token: SeShutdownPrivilege	3412	Explorer.EXE
Token: SeCreatePagefilePrivilege	3412	Explorer.EXE
Token: SeShutdownPrivilege	3412	Explorer.EXE
Token: SeCreatePagefilePrivilege	3412	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1032 wrote to memory of 3460	1032	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe	99
PID 1032 wrote to memory of 3460	1032	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe	99
PID 1032 wrote to memory of 3460	1032	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe	99
PID 1032 wrote to memory of 4004	1032	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe	101
PID 1032 wrote to memory of 4004	1032	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe	101
PID 1032 wrote to memory of 4004	1032	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe	101
PID 1032 wrote to memory of 4004	1032	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe	101
PID 1032 wrote to memory of 4004	1032	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe	101
PID 1032 wrote to memory of 4004	1032	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe	101
PID 3412 wrote to memory of 3444	3412	Explorer.EXE	102
PID 3412 wrote to memory of 3444	3412	Explorer.EXE	102
PID 3412 wrote to memory of 3444	3412	Explorer.EXE	102
PID 3444 wrote to memory of 3912	3444	explorer.exe	103
PID 3444 wrote to memory of 3912	3444	explorer.exe	103
PID 3444 wrote to memory of 3912	3444	explorer.exe	103
PID 3444 wrote to memory of 3088	3444	explorer.exe	105
PID 3444 wrote to memory of 3088	3444	explorer.exe	105
PID 3444 wrote to memory of 3088	3444	explorer.exe	105
PID 3444 wrote to memory of 4908	3444	explorer.exe	107
PID 3444 wrote to memory of 4908	3444	explorer.exe	107
PID 3444 wrote to memory of 4908	3444	explorer.exe	107

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3412
- C:\Users\Admin\AppData\Local\Temp\REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
  "C:\Users\Admin\AppData\Local\Temp\REVISED SALES CONTRACT _81773291-4SU _ PDF.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:1032
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UubERqWLWNjASL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3B20.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3460
- - C:\Users\Admin\AppData\Local\Temp\REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
    "{path}"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4004
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\SysWOW64\explorer.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3444
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\REVISED SALES CONTRACT _81773291-4SU _ PDF.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3912
- - C:\Windows\SysWOW64\cmd.exe
    /c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3088
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:4908

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

2

T1112

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\DB1

Filesize
40KB

MD5
a182561a527f929489bf4b8f74f65cd7

SHA1
8cd6866594759711ea1836e86a5b7ca64ee8911f

SHA256
42aad7886965428a941508b776a666a4450eb658cb90e80fae1e7457fc71f914

SHA512
9bc3bf5a82f6f057e873adebd5b7a4c64adef966537ab9c565fe7c4bb3582e2e485ff993d5ab8a6002363231958fabd0933b48811371b8c155eaa74592b66558

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp3B20.tmp

Filesize
1KB

MD5
8bc12a056d74d5a6333bf2cdfe926776

SHA1
3e780ba44b02eb8b1b38084669290fc35102efdb

SHA256
491b1dd77ad16a8081d7eba9c7d31251b44c8719e8fafc0b8eba11dad81f0ef9

SHA512
4310abd64a89213c905702aeb74e761a0a53939defcd455f65d4c8b2f7d22f6e5cf442963a3e88969b7b4aa7f2072ef6ef4074d19f8dddd234d290acd6f744a8

Download Submit
memory/1032-10-0x0000000006A70000-0x0000000006AEC000-memory.dmp

Filesize
496KB

Download
memory/1032-2-0x00000000055D0000-0x0000000005B74000-memory.dmp

Filesize
5.6MB

Download
memory/1032-4-0x0000000004FA0000-0x0000000004FAA000-memory.dmp

Filesize
40KB

Download
memory/1032-5-0x0000000074420000-0x0000000074BD0000-memory.dmp

Filesize
7.7MB

Download
memory/1032-6-0x0000000005220000-0x0000000005574000-memory.dmp

Filesize
3.3MB

Download
memory/1032-7-0x0000000004FC0000-0x0000000004FCA000-memory.dmp

Filesize
40KB

Download
memory/1032-8-0x000000007442E000-0x000000007442F000-memory.dmp

Filesize
4KB

Download
memory/1032-9-0x0000000074420000-0x0000000074BD0000-memory.dmp

Filesize
7.7MB

Download
memory/1032-1-0x0000000000530000-0x00000000005D8000-memory.dmp

Filesize
672KB

Download
memory/1032-11-0x0000000009080000-0x00000000090E4000-memory.dmp

Filesize
400KB

Download
memory/1032-12-0x0000000006F10000-0x0000000006FAC000-memory.dmp

Filesize
624KB

Download
memory/1032-3-0x0000000005020000-0x00000000050B2000-memory.dmp

Filesize
584KB

Download
memory/1032-0-0x000000007442E000-0x000000007442F000-memory.dmp

Filesize
4KB

Download
memory/1032-18-0x0000000074420000-0x0000000074BD0000-memory.dmp

Filesize
7.7MB

Download
memory/3412-28-0x0000000008E40000-0x0000000008FD0000-memory.dmp

Filesize
1.6MB

Download
memory/3412-36-0x0000000009140000-0x00000000092BC000-memory.dmp

Filesize
1.5MB

Download
memory/3412-32-0x0000000008FD0000-0x000000000913F000-memory.dmp

Filesize
1.4MB

Download
memory/3412-23-0x0000000008E40000-0x0000000008FD0000-memory.dmp

Filesize
1.6MB

Download
memory/3412-27-0x0000000008FD0000-0x000000000913F000-memory.dmp

Filesize
1.4MB

Download
memory/3444-31-0x0000000000810000-0x0000000000C43000-memory.dmp

Filesize
4.2MB

Download
memory/3444-29-0x0000000000810000-0x0000000000C43000-memory.dmp

Filesize
4.2MB

Download
memory/4004-16-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4004-25-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4004-26-0x00000000011B0000-0x00000000011C4000-memory.dmp

Filesize
80KB

Download
memory/4004-21-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4004-22-0x0000000001120000-0x0000000001134000-memory.dmp

Filesize
80KB

Download
memory/4004-19-0x0000000001250000-0x000000000159A000-memory.dmp

Filesize
3.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads