formbook | 65ea5f1ec926c56de31055f613a1bb09df0ba94228a02e5eea4e54f5f12b6bab

General

Target

65ea5f1ec926c56de31055f613a1bb09df0ba94228a02e5eea4e54f5f12b6babN.exe
Size

850KB
MD5

fce27267d3d20b4f8c4900f02085c640
SHA1

d3ff8bf9a8c434c478f33a05d9fb9d5dc58cb2a5
SHA256

65ea5f1ec926c56de31055f613a1bb09df0ba94228a02e5eea4e54f5f12b6bab
SHA512

3ce03e7a9d1da1b67875bdf52867e305bfbef9d39fdabd204cc23486e7bb808e13f97fb7278b9f8d9c25b508f0f0fdff4a995899c101b90725a45b45240b3b90
SSDEEP

12288:rLkcoxg7v3qnC11ErwIhh0F4qwUgUny5QLuYa5kPiUA/XrRcHXRvEYtlJ:ffmMv6Ckr7Mny5QLVip9CvEYnJ

Score

10^/10

formbook cl21 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

cl21

Decoy

0001.shop

earch-parttimejobs.today

are888.top

akanhaunthipped.shop

othing-heyu.xyz

cadvirsor.net

nclanalae.shop

lectric-cars-mexico.today

oxj-question.xyz

ersonalloanoffers.today

ersonalloans-fo54-fo37.click

verybody-ewfx.xyz

ercuremontauban.media

azilimdunyam.net

airs-clinicato.today

wiftsscend.click

ertainly-jbws.xyz

8xeng.app

damekadmitageable.cfd

ollapsedec.shop

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
behavioral1/memory/2112-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2112-9-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2112-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1996-19-0x00000000000D0000-0x00000000000FF000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2096 set thread context of 2112	2096	65ea5f1ec926c56de31055f613a1bb09df0ba94228a02e5eea4e54f5f12b6babN.exe	30
PID 2112 set thread context of 1188	2112	svchost.exe	21
PID 2112 set thread context of 1188	2112	svchost.exe	21
PID 1996 set thread context of 1188	1996	NETSTAT.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 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	65ea5f1ec926c56de31055f613a1bb09df0ba94228a02e5eea4e54f5f12b6babN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NETSTAT.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
1996	NETSTAT.EXE

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
2112	svchost.exe
2112	svchost.exe
2112	svchost.exe
1996	NETSTAT.EXE
1996	NETSTAT.EXE
1996	NETSTAT.EXE
1996	NETSTAT.EXE
1996	NETSTAT.EXE
1996	NETSTAT.EXE
1996	NETSTAT.EXE
1996	NETSTAT.EXE
1996	NETSTAT.EXE
1996	NETSTAT.EXE
1996	NETSTAT.EXE
1996	NETSTAT.EXE
1996	NETSTAT.EXE
1996	NETSTAT.EXE
1996	NETSTAT.EXE
1996	NETSTAT.EXE
1996	NETSTAT.EXE
1996	NETSTAT.EXE
1996	NETSTAT.EXE
1996	NETSTAT.EXE
1996	NETSTAT.EXE
1996	NETSTAT.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
2096	65ea5f1ec926c56de31055f613a1bb09df0ba94228a02e5eea4e54f5f12b6babN.exe
2112	svchost.exe
2112	svchost.exe
2112	svchost.exe
2112	svchost.exe
1996	NETSTAT.EXE
1996	NETSTAT.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2112	svchost.exe
Token: SeDebugPrivilege	1996	NETSTAT.EXE

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2096	65ea5f1ec926c56de31055f613a1bb09df0ba94228a02e5eea4e54f5f12b6babN.exe
2096	65ea5f1ec926c56de31055f613a1bb09df0ba94228a02e5eea4e54f5f12b6babN.exe
1188	Explorer.EXE
1188	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2096	65ea5f1ec926c56de31055f613a1bb09df0ba94228a02e5eea4e54f5f12b6babN.exe
2096	65ea5f1ec926c56de31055f613a1bb09df0ba94228a02e5eea4e54f5f12b6babN.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2096 wrote to memory of 2112	2096	65ea5f1ec926c56de31055f613a1bb09df0ba94228a02e5eea4e54f5f12b6babN.exe	30
PID 2096 wrote to memory of 2112	2096	65ea5f1ec926c56de31055f613a1bb09df0ba94228a02e5eea4e54f5f12b6babN.exe	30
PID 2096 wrote to memory of 2112	2096	65ea5f1ec926c56de31055f613a1bb09df0ba94228a02e5eea4e54f5f12b6babN.exe	30
PID 2096 wrote to memory of 2112	2096	65ea5f1ec926c56de31055f613a1bb09df0ba94228a02e5eea4e54f5f12b6babN.exe	30
PID 2096 wrote to memory of 2112	2096	65ea5f1ec926c56de31055f613a1bb09df0ba94228a02e5eea4e54f5f12b6babN.exe	30
PID 1188 wrote to memory of 1996	1188	Explorer.EXE	31
PID 1188 wrote to memory of 1996	1188	Explorer.EXE	31
PID 1188 wrote to memory of 1996	1188	Explorer.EXE	31
PID 1188 wrote to memory of 1996	1188	Explorer.EXE	31
PID 1996 wrote to memory of 2736	1996	NETSTAT.EXE	32
PID 1996 wrote to memory of 2736	1996	NETSTAT.EXE	32
PID 1996 wrote to memory of 2736	1996	NETSTAT.EXE	32
PID 1996 wrote to memory of 2736	1996	NETSTAT.EXE	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1188
- C:\Users\Admin\AppData\Local\Temp\65ea5f1ec926c56de31055f613a1bb09df0ba94228a02e5eea4e54f5f12b6babN.exe
  "C:\Users\Admin\AppData\Local\Temp\65ea5f1ec926c56de31055f613a1bb09df0ba94228a02e5eea4e54f5f12b6babN.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:2096
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\65ea5f1ec926c56de31055f613a1bb09df0ba94228a02e5eea4e54f5f12b6babN.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2112
- C:\Windows\SysWOW64\NETSTAT.EXE
  "C:\Windows\SysWOW64\NETSTAT.EXE"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Gathers network information
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1996
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2736

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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

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Downloads

memory/1188-28-0x0000000006480000-0x0000000006566000-memory.dmp

Filesize
920KB

Download
memory/1188-27-0x0000000006480000-0x0000000006566000-memory.dmp

Filesize
920KB

Download
memory/1188-25-0x0000000006480000-0x0000000006566000-memory.dmp

Filesize
920KB

Download
memory/1188-11-0x0000000004C70000-0x0000000004D75000-memory.dmp

Filesize
1.0MB

Download
memory/1188-16-0x0000000006320000-0x000000000647F000-memory.dmp

Filesize
1.4MB

Download
memory/1188-15-0x0000000004C70000-0x0000000004D75000-memory.dmp

Filesize
1.0MB

Download
memory/1188-20-0x0000000006320000-0x000000000647F000-memory.dmp

Filesize
1.4MB

Download
memory/1996-18-0x0000000000940000-0x0000000000949000-memory.dmp

Filesize
36KB

Download
memory/1996-19-0x00000000000D0000-0x00000000000FF000-memory.dmp

Filesize
188KB

Download
memory/1996-17-0x0000000000940000-0x0000000000949000-memory.dmp

Filesize
36KB

Download
memory/2096-5-0x0000000000260000-0x0000000000264000-memory.dmp

Filesize
16KB

Download
memory/2112-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2112-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2112-14-0x0000000000230000-0x0000000000244000-memory.dmp

Filesize
80KB

Download
memory/2112-10-0x00000000001C0000-0x00000000001D4000-memory.dmp

Filesize
80KB

Download
memory/2112-7-0x0000000000A40000-0x0000000000D43000-memory.dmp

Filesize
3.0MB

Download
memory/2112-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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