formbook | 4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba

General

Target

4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe
Size

1.1MB
MD5

b333b741b51e1fa861d44c2846939182
SHA1

1fe1597be441315cb76e8bfddf97c2344a5d206a
SHA256

4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba
SHA512

c85f9f14342e6d49b9d43cf3475f91a5a54cfc4fb89397572027912f4c478b62e306ca0fa2a886e1c89e02c226583eb97eefc04fa45efa8f2d05086a12bf197c
SSDEEP

24576:ctb20pkaCqT5TBWgNQ7a6Vjaab/dPQVW0hFdc6A:FVg5tQ7a6VeGV0WWFC5

Score

10^/10

formbook ud04 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ud04

Decoy

oum7.pro

ovonordisk.online

akrzus.pro

tendmtedcpsa.site

mm.foo

animevyhgsft29817.click

digdxxb.info

1130.vip

uy-now-pay-later-74776.bond

ybzert.online

edcn.link

rime-flow-bay.xyz

nd777id.beauty

otoyama.shop

lranchomx.xyz

unluoren.top

uglesang-troms.net

udulbet88.net

raquewear.shop

ijanarko.net

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

Processes:

resource	yara_rule
behavioral1/memory/2144-7-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2144-10-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2772-16-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exesvchost.exemsdt.exe

description	pid	Process	procid_target
PID 2600 set thread context of 2144	2600	4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe	29
PID 2144 set thread context of 1192	2144	svchost.exe	20
PID 2772 set thread context of 1192	2772	msdt.exe	20

System Location Discovery: System Language Discovery 1 TTPs 3 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

Processes:

4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exemsdt.execmd.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

Processes:

svchost.exemsdt.exe

pid	Process
2144	svchost.exe
2144	svchost.exe
2772	msdt.exe
2772	msdt.exe
2772	msdt.exe
2772	msdt.exe
2772	msdt.exe
2772	msdt.exe
2772	msdt.exe
2772	msdt.exe
2772	msdt.exe
2772	msdt.exe
2772	msdt.exe
2772	msdt.exe
2772	msdt.exe
2772	msdt.exe
2772	msdt.exe
2772	msdt.exe
2772	msdt.exe
2772	msdt.exe
2772	msdt.exe
2772	msdt.exe
2772	msdt.exe
2772	msdt.exe
2772	msdt.exe
2772	msdt.exe
2772	msdt.exe
2772	msdt.exe
2772	msdt.exe
2772	msdt.exe
2772	msdt.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exesvchost.exemsdt.exe

pid	Process
2600	4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe
2144	svchost.exe
2144	svchost.exe
2144	svchost.exe
2772	msdt.exe
2772	msdt.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

svchost.exemsdt.exe

description	pid	Process
Token: SeDebugPrivilege	2144	svchost.exe
Token: SeDebugPrivilege	2772	msdt.exe

Suspicious use of FindShellTrayWindow 5 IoCs

Processes:

4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exeExplorer.EXE

pid	Process
2600	4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe
2600	4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe
2600	4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe
1192	Explorer.EXE
1192	Explorer.EXE

Suspicious use of SendNotifyMessage 3 IoCs

Processes:

4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe

pid	Process
2600	4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe
2600	4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe
2600	4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exeExplorer.EXEmsdt.exe

description	pid	Process	procid_target
PID 2600 wrote to memory of 2144	2600	4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe	29
PID 2600 wrote to memory of 2144	2600	4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe	29
PID 2600 wrote to memory of 2144	2600	4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe	29
PID 2600 wrote to memory of 2144	2600	4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe	29
PID 2600 wrote to memory of 2144	2600	4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe	29
PID 1192 wrote to memory of 2772	1192	Explorer.EXE	30
PID 1192 wrote to memory of 2772	1192	Explorer.EXE	30
PID 1192 wrote to memory of 2772	1192	Explorer.EXE	30
PID 1192 wrote to memory of 2772	1192	Explorer.EXE	30
PID 2772 wrote to memory of 2876	2772	msdt.exe	31
PID 2772 wrote to memory of 2876	2772	msdt.exe	31
PID 2772 wrote to memory of 2876	2772	msdt.exe	31
PID 2772 wrote to memory of 2876	2772	msdt.exe	31

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1192
- C:\Users\Admin\AppData\Local\Temp\4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe
  "C:\Users\Admin\AppData\Local\Temp\4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2600
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\4a85bac71b81338df2e724c587995e231dfc0b32b004cfea253b8d94422cc4ba.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2144
- C:\Windows\SysWOW64\msdt.exe
  "C:\Windows\SysWOW64\msdt.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:2772
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2876

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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/1192-13-0x00000000061D0000-0x0000000006345000-memory.dmp

Filesize
1.5MB

Download
memory/1192-26-0x00000000065D0000-0x000000000672E000-memory.dmp

Filesize
1.4MB

Download
memory/1192-24-0x00000000065D0000-0x000000000672E000-memory.dmp

Filesize
1.4MB

Download
memory/1192-23-0x00000000065D0000-0x000000000672E000-memory.dmp

Filesize
1.4MB

Download
memory/1192-17-0x00000000061D0000-0x0000000006345000-memory.dmp

Filesize
1.5MB

Download
memory/1192-12-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/2144-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2144-11-0x0000000000290000-0x00000000002A4000-memory.dmp

Filesize
80KB

Download
memory/2144-8-0x0000000000860000-0x0000000000B63000-memory.dmp

Filesize
3.0MB

Download
memory/2144-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2600-6-0x0000000000C70000-0x0000000001070000-memory.dmp

Filesize
4.0MB

Download
memory/2772-14-0x0000000000780000-0x0000000000874000-memory.dmp

Filesize
976KB

Download
memory/2772-15-0x0000000000780000-0x0000000000874000-memory.dmp

Filesize
976KB

Download
memory/2772-16-0x0000000000080000-0x00000000000AF000-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