formbook | f35ae0455a4272eab2d20801b0aba6931e5d5d3f8eb5dd0e6d464d4300b10594

General

Target

f35ae0455a4272eab2d20801b0aba6931e5d5d3f8eb5dd0e6d464d4300b10594.exe
Size

1.1MB
MD5

2066df5d5f8e2c7b31bc7c801e61b6ed
SHA1

9c767ae562dd7aecc81d97e1a9cb73c2373f73b4
SHA256

f35ae0455a4272eab2d20801b0aba6931e5d5d3f8eb5dd0e6d464d4300b10594
SHA512

4db60094570d82da05546708796f0bb341df8cbecce778032118fb4117f5df1144cc8f280b6e5fae9bd43221a07cfcfe292cb403e0cd1d94defa3ca23b4a4029
SSDEEP

24576:uRmJkcoQricOIQxiZY1iaCQuuWqBcs33xaF/iAoRQtmyGb5:7JZoQrbTFZY1iaCQuuhx3xaFzoRQtlGl

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/2568-3-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2568-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2568-10-0x0000000000400000-0x000000000042F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

f35ae0455a4272eab2d20801b0aba6931e5d5d3f8eb5dd0e6d464d4300b10594.exesvchost.exe

description	pid	process	target process
PID 2092 set thread context of 2568	2092	f35ae0455a4272eab2d20801b0aba6931e5d5d3f8eb5dd0e6d464d4300b10594.exe	svchost.exe
PID 2568 set thread context of 1196	2568	svchost.exe	Explorer.EXE
PID 2568 set thread context of 1196	2568	svchost.exe	Explorer.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2740 2404 WerFault.exe msiexec.exe

pid	pid_target	process	target process
2740	2404	WerFault.exe	msiexec.exe

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:

f35ae0455a4272eab2d20801b0aba6931e5d5d3f8eb5dd0e6d464d4300b10594.exesvchost.exemsiexec.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f35ae0455a4272eab2d20801b0aba6931e5d5d3f8eb5dd0e6d464d4300b10594.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

svchost.exe

pid process

2568 svchost.exe
2568 svchost.exe
2568 svchost.exe
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

f35ae0455a4272eab2d20801b0aba6931e5d5d3f8eb5dd0e6d464d4300b10594.exesvchost.exe

pid process

2092 f35ae0455a4272eab2d20801b0aba6931e5d5d3f8eb5dd0e6d464d4300b10594.exe
2568 svchost.exe
2568 svchost.exe
2568 svchost.exe
2568 svchost.exe

pid	process
2568	svchost.exe
2568	svchost.exe
2568	svchost.exe

pid	process
2092	f35ae0455a4272eab2d20801b0aba6931e5d5d3f8eb5dd0e6d464d4300b10594.exe
2568	svchost.exe
2568	svchost.exe
2568	svchost.exe
2568	svchost.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

svchost.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	2568	svchost.exe
Token: SeShutdownPrivilege	1196	Explorer.EXE
Token: SeShutdownPrivilege	1196	Explorer.EXE
Token: SeShutdownPrivilege	1196	Explorer.EXE

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

f35ae0455a4272eab2d20801b0aba6931e5d5d3f8eb5dd0e6d464d4300b10594.exesvchost.exemsiexec.exe

description	pid	process	target process
PID 2092 wrote to memory of 2568	2092	f35ae0455a4272eab2d20801b0aba6931e5d5d3f8eb5dd0e6d464d4300b10594.exe	svchost.exe
PID 2092 wrote to memory of 2568	2092	f35ae0455a4272eab2d20801b0aba6931e5d5d3f8eb5dd0e6d464d4300b10594.exe	svchost.exe
PID 2092 wrote to memory of 2568	2092	f35ae0455a4272eab2d20801b0aba6931e5d5d3f8eb5dd0e6d464d4300b10594.exe	svchost.exe
PID 2092 wrote to memory of 2568	2092	f35ae0455a4272eab2d20801b0aba6931e5d5d3f8eb5dd0e6d464d4300b10594.exe	svchost.exe
PID 2092 wrote to memory of 2568	2092	f35ae0455a4272eab2d20801b0aba6931e5d5d3f8eb5dd0e6d464d4300b10594.exe	svchost.exe
PID 2568 wrote to memory of 2404	2568	svchost.exe	msiexec.exe
PID 2568 wrote to memory of 2404	2568	svchost.exe	msiexec.exe
PID 2568 wrote to memory of 2404	2568	svchost.exe	msiexec.exe
PID 2568 wrote to memory of 2404	2568	svchost.exe	msiexec.exe
PID 2568 wrote to memory of 2404	2568	svchost.exe	msiexec.exe
PID 2568 wrote to memory of 2404	2568	svchost.exe	msiexec.exe
PID 2568 wrote to memory of 2404	2568	svchost.exe	msiexec.exe
PID 2404 wrote to memory of 2740	2404	msiexec.exe	WerFault.exe
PID 2404 wrote to memory of 2740	2404	msiexec.exe	WerFault.exe
PID 2404 wrote to memory of 2740	2404	msiexec.exe	WerFault.exe
PID 2404 wrote to memory of 2740	2404	msiexec.exe	WerFault.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1196
- C:\Users\Admin\AppData\Local\Temp\f35ae0455a4272eab2d20801b0aba6931e5d5d3f8eb5dd0e6d464d4300b10594.exe
  "C:\Users\Admin\AppData\Local\Temp\f35ae0455a4272eab2d20801b0aba6931e5d5d3f8eb5dd0e6d464d4300b10594.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2092
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\f35ae0455a4272eab2d20801b0aba6931e5d5d3f8eb5dd0e6d464d4300b10594.exe"
    3⤵
    - 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:2568
  - - C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\SysWOW64\msiexec.exe"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2404
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2404 -s 268
        5⤵
        Program crash
        
        PID:2740

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

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

memory/1196-12-0x00000000066D0000-0x00000000067DC000-memory.dmp

Filesize
1.0MB

Download
memory/1196-13-0x0000000006BD0000-0x0000000006D36000-memory.dmp

Filesize
1.4MB

Download
memory/1196-8-0x00000000066D0000-0x00000000067DC000-memory.dmp

Filesize
1.0MB

Download
memory/2092-2-0x0000000003DC0000-0x00000000041C0000-memory.dmp

Filesize
4.0MB

Download
memory/2404-17-0x0000000000DC0000-0x0000000000DD4000-memory.dmp

Filesize
80KB

Download
memory/2404-14-0x0000000000DC0000-0x0000000000DD4000-memory.dmp

Filesize
80KB

Download
memory/2404-15-0x0000000000DC0000-0x0000000000DD4000-memory.dmp

Filesize
80KB

Download
memory/2568-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2568-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2568-11-0x0000000000220000-0x0000000000234000-memory.dmp

Filesize
80KB

Download
memory/2568-7-0x0000000000140000-0x0000000000154000-memory.dmp

Filesize
80KB

Download
memory/2568-4-0x0000000000A80000-0x0000000000D83000-memory.dmp

Filesize
3.0MB

Download
memory/2568-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads