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 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
behavioral1/memory/2780-21-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/2780-18-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/2780-26-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
2484	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1704 set thread context of 2780	1704	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe	33
PID 2780 set thread context of 1284	2780	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe	21
PID 2780 set thread context of 1284	2780	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe	21
PID 1172 set thread context of 1284	1172	wuapp.exe	21

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 4 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	wuapp.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
2752	schtasks.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

pid	Process
1704	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
1704	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
1704	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
2780	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
2780	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
1704	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
2780	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
1172	wuapp.exe
1172	wuapp.exe
1172	wuapp.exe
1172	wuapp.exe
1172	wuapp.exe
1172	wuapp.exe
1172	wuapp.exe
1172	wuapp.exe
1172	wuapp.exe
1172	wuapp.exe
1172	wuapp.exe
1172	wuapp.exe
1172	wuapp.exe
1172	wuapp.exe
1172	wuapp.exe
1172	wuapp.exe
1172	wuapp.exe
1172	wuapp.exe
1172	wuapp.exe
1172	wuapp.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2780	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
2780	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
2780	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
2780	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
1172	wuapp.exe
1172	wuapp.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1704	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
Token: SeDebugPrivilege	2780	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe
Token: SeDebugPrivilege	1172	wuapp.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 1704 wrote to memory of 2752	1704	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe	31
PID 1704 wrote to memory of 2752	1704	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe	31
PID 1704 wrote to memory of 2752	1704	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe	31
PID 1704 wrote to memory of 2752	1704	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe	31
PID 1704 wrote to memory of 2780	1704	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe	33
PID 1704 wrote to memory of 2780	1704	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe	33
PID 1704 wrote to memory of 2780	1704	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe	33
PID 1704 wrote to memory of 2780	1704	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe	33
PID 1704 wrote to memory of 2780	1704	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe	33
PID 1704 wrote to memory of 2780	1704	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe	33
PID 1704 wrote to memory of 2780	1704	REVISED SALES CONTRACT _81773291-4SU _ PDF.exe	33
PID 1284 wrote to memory of 1172	1284	Explorer.EXE	35
PID 1284 wrote to memory of 1172	1284	Explorer.EXE	35
PID 1284 wrote to memory of 1172	1284	Explorer.EXE	35
PID 1284 wrote to memory of 1172	1284	Explorer.EXE	35
PID 1284 wrote to memory of 1172	1284	Explorer.EXE	35
PID 1284 wrote to memory of 1172	1284	Explorer.EXE	35
PID 1284 wrote to memory of 1172	1284	Explorer.EXE	35
PID 1172 wrote to memory of 2484	1172	wuapp.exe	36
PID 1172 wrote to memory of 2484	1172	wuapp.exe	36
PID 1172 wrote to memory of 2484	1172	wuapp.exe	36
PID 1172 wrote to memory of 2484	1172	wuapp.exe	36

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1284
- 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⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1704
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UubERqWLWNjASL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5F5F.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2752
- - 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:2780
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:2740
- C:\Windows\SysWOW64\wuapp.exe
  "C:\Windows\SysWOW64\wuapp.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:1172
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\REVISED SALES CONTRACT _81773291-4SU _ PDF.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2484

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp5F5F.tmp

Filesize
1KB

MD5
ba40e816229d105217c06f5cde37258a

SHA1
5a91854fa4a5dce70ae6457f60371f214417ed12

SHA256
d782f13fb5fd00607f9f6e031b566163ba8ba304dfd5d901d2f35bbb4c4af2fb

SHA512
9a891f57f271386af27a8fc990f2baef2250787512545da3ede433eae9b73cf3e4586650f340d580434424f32b1ea7d227bf97808e2411b8372f1286ff07950b

Download Submit
memory/1172-32-0x0000000000E10000-0x0000000000E1B000-memory.dmp

Filesize
44KB

Download
memory/1172-30-0x0000000000E10000-0x0000000000E1B000-memory.dmp

Filesize
44KB

Download
memory/1284-33-0x0000000005210000-0x0000000005387000-memory.dmp

Filesize
1.5MB

Download
memory/1284-29-0x0000000005210000-0x0000000005387000-memory.dmp

Filesize
1.5MB

Download
memory/1284-28-0x00000000050F0000-0x000000000520A000-memory.dmp

Filesize
1.1MB

Download
memory/1284-24-0x00000000050F0000-0x000000000520A000-memory.dmp

Filesize
1.1MB

Download
memory/1704-6-0x0000000004B60000-0x0000000004BDC000-memory.dmp

Filesize
496KB

Download
memory/1704-0-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

Filesize
4KB

Download
memory/1704-1-0x0000000000190000-0x0000000000238000-memory.dmp

Filesize
672KB

Download
memory/1704-2-0x0000000074DE0000-0x00000000754CE000-memory.dmp

Filesize
6.9MB

Download
memory/1704-3-0x0000000000540000-0x000000000054A000-memory.dmp

Filesize
40KB

Download
memory/1704-7-0x0000000004C20000-0x0000000004C84000-memory.dmp

Filesize
400KB

Download
memory/1704-4-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

Filesize
4KB

Download
memory/1704-5-0x0000000074DE0000-0x00000000754CE000-memory.dmp

Filesize
6.9MB

Download
memory/1704-23-0x0000000074DE0000-0x00000000754CE000-memory.dmp

Filesize
6.9MB

Download
memory/2780-19-0x0000000000B50000-0x0000000000E53000-memory.dmp

Filesize
3.0MB

Download
memory/2780-13-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2780-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2780-18-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2780-27-0x0000000000240000-0x0000000000254000-memory.dmp

Filesize
80KB

Download
memory/2780-26-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2780-21-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2780-22-0x0000000000140000-0x0000000000154000-memory.dmp

Filesize
80KB

Download
memory/2780-11-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads