formbook | a5e9691e534dca4edb6c0a0e86690541c9ec6f4f17bb4b0114c4045bc2e0b79b

General

Target

pos.exe
Size

454KB
MD5

0082bb1c3ac5dc499f6db3d45de0ab3e
SHA1

90eb55324f4068a4fde1da25ca7a3eff65d17e1e
SHA256

1bb913d6f594107a8c8d4d64f9a3de85c602813d9ad93189b9949fbc8a93aa32
SHA512

e42c5af62527c2193d3f49f93918535b656f9d0a34065657df8273e606405b551e9f939450a134c20c58429951fbe7a27c14e19e66eeee57446349eaf7e30384
SSDEEP

6144:RT6Uqd2GhN5TebaT+hbE8BuXQ7NwHeOwvGOYLtXy00ynAWGyAu4mpwcFCLFjuShC:RmUi2iNtwBE0YOYLt7WDuZmo4juCueW

Score

10^/10

formbook u1bs discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

u1bs

Decoy

ln-safe-keepingmisva4.xyz

rtfh.xyz

awolin.link

metadlf.com

cardboardcasual.com

psicoterapiahablada.com

spaminator.xyz

hnjqzl.top

dentalyinovasi.site

biosynblas.com

zvyk.store

shreevishwakarmaservices.com

showersplash.com

norbert-roth.com

londoncapitaltraders.com

istanbuldonerkebabheroncity.com

realdiscountsnow.com

marlinplumbingwnc.com

magazinadziavane.com

qantv.com

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/4892-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4892-21-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4892-25-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3064-31-0x00000000005D0000-0x00000000005FF000-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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	pos.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 392 set thread context of 4892	392	pos.exe	101
PID 4892 set thread context of 3440	4892	pos.exe	56
PID 4892 set thread context of 3440	4892	pos.exe	56
PID 3064 set thread context of 3440	3064	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 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	pos.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	control.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
5056	schtasks.exe

Suspicious behavior: EnumeratesProcesses 48 IoCs

pid	Process
4892	pos.exe
4892	pos.exe
4892	pos.exe
4892	pos.exe
4892	pos.exe
4892	pos.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe
3064	control.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
4892	pos.exe
4892	pos.exe
4892	pos.exe
4892	pos.exe
3064	control.exe
3064	control.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4892	pos.exe
Token: SeShutdownPrivilege	3440	Explorer.EXE
Token: SeCreatePagefilePrivilege	3440	Explorer.EXE
Token: SeDebugPrivilege	3064	control.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 392 wrote to memory of 5056	392	pos.exe	99
PID 392 wrote to memory of 5056	392	pos.exe	99
PID 392 wrote to memory of 5056	392	pos.exe	99
PID 392 wrote to memory of 4892	392	pos.exe	101
PID 392 wrote to memory of 4892	392	pos.exe	101
PID 392 wrote to memory of 4892	392	pos.exe	101
PID 392 wrote to memory of 4892	392	pos.exe	101
PID 392 wrote to memory of 4892	392	pos.exe	101
PID 392 wrote to memory of 4892	392	pos.exe	101
PID 3440 wrote to memory of 3064	3440	Explorer.EXE	102
PID 3440 wrote to memory of 3064	3440	Explorer.EXE	102
PID 3440 wrote to memory of 3064	3440	Explorer.EXE	102
PID 3064 wrote to memory of 4784	3064	control.exe	103
PID 3064 wrote to memory of 4784	3064	control.exe	103
PID 3064 wrote to memory of 4784	3064	control.exe	103

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3440
- C:\Users\Admin\AppData\Local\Temp\pos.exe
  "C:\Users\Admin\AppData\Local\Temp\pos.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:392
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YAeSiES" /XML "C:\Users\Admin\AppData\Local\Temp\tmp10E3.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:5056
- - C:\Users\Admin\AppData\Local\Temp\pos.exe
    "C:\Users\Admin\AppData\Local\Temp\pos.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4892
- 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:3064
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\pos.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4784

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

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Downloads

memory/392-18-0x0000000074BE0000-0x0000000075390000-memory.dmp

Filesize
7.7MB

Download
memory/392-1-0x0000000000330000-0x00000000003A8000-memory.dmp

Filesize
480KB

Download
memory/392-2-0x0000000005300000-0x00000000058A4000-memory.dmp

Filesize
5.6MB

Download
memory/392-3-0x0000000004DF0000-0x0000000004E82000-memory.dmp

Filesize
584KB

Download
memory/392-4-0x0000000074BE0000-0x0000000075390000-memory.dmp

Filesize
7.7MB

Download
memory/392-5-0x0000000004DC0000-0x0000000004DCA000-memory.dmp

Filesize
40KB

Download
memory/392-6-0x00000000052C0000-0x00000000052CE000-memory.dmp

Filesize
56KB

Download
memory/392-7-0x0000000074BEE000-0x0000000074BEF000-memory.dmp

Filesize
4KB

Download
memory/392-8-0x0000000074BE0000-0x0000000075390000-memory.dmp

Filesize
7.7MB

Download
memory/392-9-0x0000000005BD0000-0x0000000005C6C000-memory.dmp

Filesize
624KB

Download
memory/392-10-0x0000000005DC0000-0x0000000005E18000-memory.dmp

Filesize
352KB

Download
memory/392-0-0x0000000074BEE000-0x0000000074BEF000-memory.dmp

Filesize
4KB

Download
memory/3064-30-0x0000000000340000-0x0000000000367000-memory.dmp

Filesize
156KB

Download
memory/3064-29-0x0000000000340000-0x0000000000367000-memory.dmp

Filesize
156KB

Download
memory/3064-31-0x00000000005D0000-0x00000000005FF000-memory.dmp

Filesize
188KB

Download
memory/3440-23-0x0000000007D80000-0x0000000007E7C000-memory.dmp

Filesize
1008KB

Download
memory/3440-27-0x0000000008E50000-0x0000000008F96000-memory.dmp

Filesize
1.3MB

Download
memory/3440-28-0x0000000007D80000-0x0000000007E7C000-memory.dmp

Filesize
1008KB

Download
memory/3440-32-0x0000000008E50000-0x0000000008F96000-memory.dmp

Filesize
1.3MB

Download
memory/3440-35-0x00000000086E0000-0x000000000877F000-memory.dmp

Filesize
636KB

Download
memory/3440-37-0x00000000086E0000-0x000000000877F000-memory.dmp

Filesize
636KB

Download
memory/3440-38-0x00000000086E0000-0x000000000877F000-memory.dmp

Filesize
636KB

Download
memory/4892-19-0x0000000001770000-0x0000000001ABA000-memory.dmp

Filesize
3.3MB

Download
memory/4892-26-0x0000000001600000-0x0000000001614000-memory.dmp

Filesize
80KB

Download
memory/4892-25-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4892-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4892-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4892-22-0x00000000011C0000-0x00000000011D4000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads