formbook | 739a7a2cd1b3799605d3d7ded9fc159d74b20b9b5b8bfb46fd870d93fa825a49

General

Target

Nov.pdf.exe
Size

634KB
MD5

406a8800ac851d7591b9faa57c7a540a
SHA1

62df23d861119dae068567ed47259c44a9121064
SHA256

714c331c290a9293ff62b5ef61add6cdc8d33043b2290c4e422f18ade08a513a
SHA512

51e74669a8e11ac12409a61828d283747e20b9f439db9da158232a44c7ca9aff6d2aafa8506791566e03df44c36251b612daa9a8dd0eebeadc6ee338ed2a3ffa
SSDEEP

12288:WBpCdKYpMlSGbv567mWTWwwjENXl+6vkMFfVIQZWaxyc0d1is:MMQYCSGb5cmqfwj61MMFfVIcycA4

Score

10^/10

formbook sqxs discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

sqxs

Decoy

creid-network.com

dinningatcastlehill.com

fundadilla.com

fashionmdeasy.com

magentos6.com

pushpartybdp.com

streamingnetwork.xyz

sevenredwalls.com

hsuehsun.space

leanbirthdaycake.com

rocketmortgagedeceit.com

cashflowdb.com

smilebringerdesign.com

naomicoleclinic.com

wingsforklift.com

newsounding.com

48hrbusinessrescue.pro

101osthoff456.com

attleticgreens.com

xx233.xyz

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/1928-17-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/1928-22-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/1920-28-0x0000000000850000-0x000000000087E000-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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	Nov.pdf.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1512 set thread context of 1928	1512	Nov.pdf.exe	93
PID 1928 set thread context of 3496	1928	RegSvcs.exe	56
PID 1920 set thread context of 3496	1920	cmd.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 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Nov.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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
2000	schtasks.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
1512	Nov.pdf.exe
1512	Nov.pdf.exe
1512	Nov.pdf.exe
1512	Nov.pdf.exe
1928	RegSvcs.exe
1928	RegSvcs.exe
1928	RegSvcs.exe
1928	RegSvcs.exe
1920	cmd.exe
1920	cmd.exe
1920	cmd.exe
1920	cmd.exe
1920	cmd.exe
1920	cmd.exe
1920	cmd.exe
1920	cmd.exe
1920	cmd.exe
1920	cmd.exe
1920	cmd.exe
1920	cmd.exe
1920	cmd.exe
1920	cmd.exe
1920	cmd.exe
1920	cmd.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1928	RegSvcs.exe
1928	RegSvcs.exe
1928	RegSvcs.exe
1920	cmd.exe
1920	cmd.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1512	Nov.pdf.exe
Token: SeDebugPrivilege	1928	RegSvcs.exe
Token: SeDebugPrivilege	1920	cmd.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1512 wrote to memory of 2000	1512	Nov.pdf.exe	91
PID 1512 wrote to memory of 2000	1512	Nov.pdf.exe	91
PID 1512 wrote to memory of 2000	1512	Nov.pdf.exe	91
PID 1512 wrote to memory of 1928	1512	Nov.pdf.exe	93
PID 1512 wrote to memory of 1928	1512	Nov.pdf.exe	93
PID 1512 wrote to memory of 1928	1512	Nov.pdf.exe	93
PID 1512 wrote to memory of 1928	1512	Nov.pdf.exe	93
PID 1512 wrote to memory of 1928	1512	Nov.pdf.exe	93
PID 1512 wrote to memory of 1928	1512	Nov.pdf.exe	93
PID 3496 wrote to memory of 1920	3496	Explorer.EXE	94
PID 3496 wrote to memory of 1920	3496	Explorer.EXE	94
PID 3496 wrote to memory of 1920	3496	Explorer.EXE	94
PID 1920 wrote to memory of 2128	1920	cmd.exe	95
PID 1920 wrote to memory of 2128	1920	cmd.exe	95
PID 1920 wrote to memory of 2128	1920	cmd.exe	95

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3496
- C:\Users\Admin\AppData\Local\Temp\Nov.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Nov.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:1512
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ynHpXzKuzkLW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4210.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2000
- - 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:1928
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\SysWOW64\cmd.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:1920
- - 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:2128

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

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp4210.tmp

Filesize
1KB

MD5
aae15f3e0ba3171cccb11e3613627b3b

SHA1
e22d80810c454d10a6d34e0ac7fd06f94bc2d62c

SHA256
1092c97f710b466b46ec81838d776ac0e3d68b448549b02dbd537bff8462408f

SHA512
7f23a74e9ee05b6dd1b7423484af64af8891232585ac44801808fb59c120960f415515ac938ead43f8efdc5cb79385e7e11c471ab7f7cb513c22dc9de12f13d5

Download Submit
memory/1512-6-0x0000000004C80000-0x0000000004C8A000-memory.dmp

Filesize
40KB

Download
memory/1512-5-0x0000000074830000-0x0000000074FE0000-memory.dmp

Filesize
7.7MB

Download
memory/1512-2-0x00000000052B0000-0x0000000005854000-memory.dmp

Filesize
5.6MB

Download
memory/1512-4-0x0000000004DA0000-0x0000000004E3C000-memory.dmp

Filesize
624KB

Download
memory/1512-19-0x0000000074830000-0x0000000074FE0000-memory.dmp

Filesize
7.7MB

Download
memory/1512-0-0x000000007483E000-0x000000007483F000-memory.dmp

Filesize
4KB

Download
memory/1512-7-0x0000000007A60000-0x0000000007A6C000-memory.dmp

Filesize
48KB

Download
memory/1512-8-0x000000007483E000-0x000000007483F000-memory.dmp

Filesize
4KB

Download
memory/1512-9-0x0000000074830000-0x0000000074FE0000-memory.dmp

Filesize
7.7MB

Download
memory/1512-10-0x0000000000AE0000-0x0000000000B5E000-memory.dmp

Filesize
504KB

Download
memory/1512-11-0x0000000000BA0000-0x0000000000BD8000-memory.dmp

Filesize
224KB

Download
memory/1512-1-0x00000000001E0000-0x0000000000284000-memory.dmp

Filesize
656KB

Download
memory/1512-3-0x0000000004D00000-0x0000000004D92000-memory.dmp

Filesize
584KB

Download
memory/1920-27-0x0000000000890000-0x00000000008EA000-memory.dmp

Filesize
360KB

Download
memory/1920-25-0x0000000000890000-0x00000000008EA000-memory.dmp

Filesize
360KB

Download
memory/1920-28-0x0000000000850000-0x000000000087E000-memory.dmp

Filesize
184KB

Download
memory/1928-20-0x00000000010B0000-0x00000000013FA000-memory.dmp

Filesize
3.3MB

Download
memory/1928-23-0x0000000000BD0000-0x0000000000BE4000-memory.dmp

Filesize
80KB

Download
memory/1928-22-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1928-17-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3496-24-0x00000000029B0000-0x0000000002AA4000-memory.dmp

Filesize
976KB

Download
memory/3496-29-0x00000000029B0000-0x0000000002AA4000-memory.dmp

Filesize
976KB

Download
memory/3496-31-0x0000000008400000-0x0000000008510000-memory.dmp

Filesize
1.1MB

Download
memory/3496-32-0x0000000008400000-0x0000000008510000-memory.dmp

Filesize
1.1MB

Download
memory/3496-34-0x0000000008400000-0x0000000008510000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads