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 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2232-18-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2232-22-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2928-29-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
2688	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1688 set thread context of 2232	1688	pos.exe	34
PID 2232 set thread context of 1272	2232	pos.exe	21
PID 2928 set thread context of 1272	2928	svchost.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	pos.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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
2832	schtasks.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
1688	pos.exe
1688	pos.exe
2232	pos.exe
2232	pos.exe
2928	svchost.exe
2928	svchost.exe
2928	svchost.exe
2928	svchost.exe
2928	svchost.exe
2928	svchost.exe
2928	svchost.exe
2928	svchost.exe
2928	svchost.exe
2928	svchost.exe
2928	svchost.exe
2928	svchost.exe
2928	svchost.exe
2928	svchost.exe
2928	svchost.exe
2928	svchost.exe
2928	svchost.exe
2928	svchost.exe
2928	svchost.exe
2928	svchost.exe
2928	svchost.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2232	pos.exe
2232	pos.exe
2232	pos.exe
2928	svchost.exe
2928	svchost.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1688	pos.exe
Token: SeDebugPrivilege	2232	pos.exe
Token: SeDebugPrivilege	2928	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1688 wrote to memory of 2832	1688	pos.exe	31
PID 1688 wrote to memory of 2832	1688	pos.exe	31
PID 1688 wrote to memory of 2832	1688	pos.exe	31
PID 1688 wrote to memory of 2832	1688	pos.exe	31
PID 1688 wrote to memory of 2804	1688	pos.exe	32
PID 1688 wrote to memory of 2804	1688	pos.exe	32
PID 1688 wrote to memory of 2804	1688	pos.exe	32
PID 1688 wrote to memory of 2804	1688	pos.exe	32
PID 1688 wrote to memory of 2232	1688	pos.exe	34
PID 1688 wrote to memory of 2232	1688	pos.exe	34
PID 1688 wrote to memory of 2232	1688	pos.exe	34
PID 1688 wrote to memory of 2232	1688	pos.exe	34
PID 1688 wrote to memory of 2232	1688	pos.exe	34
PID 1688 wrote to memory of 2232	1688	pos.exe	34
PID 1688 wrote to memory of 2232	1688	pos.exe	34
PID 1272 wrote to memory of 2928	1272	Explorer.EXE	35
PID 1272 wrote to memory of 2928	1272	Explorer.EXE	35
PID 1272 wrote to memory of 2928	1272	Explorer.EXE	35
PID 1272 wrote to memory of 2928	1272	Explorer.EXE	35
PID 2928 wrote to memory of 2688	2928	svchost.exe	36
PID 2928 wrote to memory of 2688	2928	svchost.exe	36
PID 2928 wrote to memory of 2688	2928	svchost.exe	36
PID 2928 wrote to memory of 2688	2928	svchost.exe	36

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1272
- C:\Users\Admin\AppData\Local\Temp\pos.exe
  "C:\Users\Admin\AppData\Local\Temp\pos.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1688
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YAeSiES" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6C3B.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2832
- - C:\Users\Admin\AppData\Local\Temp\pos.exe
    "C:\Users\Admin\AppData\Local\Temp\pos.exe"
    3⤵
    PID:2804
- - 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:2232
- C:\Windows\SysWOW64\svchost.exe
  "C:\Windows\SysWOW64\svchost.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:2928
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\pos.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2688

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1272-24-0x00000000038C0000-0x00000000039C0000-memory.dmp

Filesize
1024KB

Download
memory/1272-30-0x0000000006B90000-0x0000000006CCF000-memory.dmp

Filesize
1.2MB

Download
memory/1272-25-0x0000000006B90000-0x0000000006CCF000-memory.dmp

Filesize
1.2MB

Download
memory/1688-5-0x0000000074790000-0x0000000074E7E000-memory.dmp

Filesize
6.9MB

Download
memory/1688-19-0x0000000074790000-0x0000000074E7E000-memory.dmp

Filesize
6.9MB

Download
memory/1688-0-0x000000007479E000-0x000000007479F000-memory.dmp

Filesize
4KB

Download
memory/1688-6-0x0000000004360000-0x00000000043B8000-memory.dmp

Filesize
352KB

Download
memory/1688-1-0x0000000000AA0000-0x0000000000B18000-memory.dmp

Filesize
480KB

Download
memory/1688-4-0x000000007479E000-0x000000007479F000-memory.dmp

Filesize
4KB

Download
memory/1688-2-0x0000000074790000-0x0000000074E7E000-memory.dmp

Filesize
6.9MB

Download
memory/1688-3-0x0000000000540000-0x000000000054E000-memory.dmp

Filesize
56KB

Download
memory/2232-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2232-20-0x0000000000B20000-0x0000000000E23000-memory.dmp

Filesize
3.0MB

Download
memory/2232-23-0x0000000000200000-0x0000000000214000-memory.dmp

Filesize
80KB

Download
memory/2232-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2232-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2232-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2232-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2928-28-0x0000000000490000-0x0000000000498000-memory.dmp

Filesize
32KB

Download
memory/2928-26-0x0000000000490000-0x0000000000498000-memory.dmp

Filesize
32KB

Download
memory/2928-29-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads