formbook | a8a7abb66cf22c7f804029fa215b1dd39861eda91874af97436a4ac738670f99

General

Target

d8b35495d596fa9369df3a9e5d95da70N.exe
Size

1.0MB
MD5

d8b35495d596fa9369df3a9e5d95da70
SHA1

1791b053bf9b9eaeaa7f8ce2e21558a281292ab3
SHA256

a8a7abb66cf22c7f804029fa215b1dd39861eda91874af97436a4ac738670f99
SHA512

ad620640b076a72ec497b5bdea5180d520f666bed091148cfc342525b34671fb30b2339cc6f4abd4ff9d1f7e30c0f1976126f3e498af95a9115016eebd0b70a0
SSDEEP

24576:btb20pkaCqT5TBWgNQ7akdu8ScxJtJM2nt6A:YVg5tQ7akdugrfM2t5

Score

10^/10

formbook ki73 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ki73

Decoy

zumruduankainsaat.com

bespokearomatics.com

aljumaih-awgaf.online

ds4ds4dfsg4g4.vip

csqj.fun

hairbywendybarrios.shop

savvysaleshop.com

palmettobev.work

reneeonremote.com

pristina.xyz

cosnapsmedia.com

snowshop4.com

pedkey.com

46771481.com

wb777z.vip

toya88login.store

wantedwomenover40.com

fantasygolftournament.com

9t7sjki.fun

bestcampingbed.info

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/3172-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3172-14-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1852-19-0x0000000000ED0000-0x0000000000EFF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4564 set thread context of 3172	4564	d8b35495d596fa9369df3a9e5d95da70N.exe	87
PID 3172 set thread context of 3440	3172	svchost.exe	56
PID 1852 set thread context of 3440	1852	ipconfig.exe	56

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	d8b35495d596fa9369df3a9e5d95da70N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ipconfig.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
1852	ipconfig.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2636447293-1148739154-93880854-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 50 IoCs

pid	Process
3172	svchost.exe
3172	svchost.exe
3172	svchost.exe
3172	svchost.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
4564	d8b35495d596fa9369df3a9e5d95da70N.exe
3172	svchost.exe
3172	svchost.exe
3172	svchost.exe
1852	ipconfig.exe
1852	ipconfig.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	3172	svchost.exe
Token: SeShutdownPrivilege	3440	Explorer.EXE
Token: SeCreatePagefilePrivilege	3440	Explorer.EXE
Token: SeShutdownPrivilege	3440	Explorer.EXE
Token: SeCreatePagefilePrivilege	3440	Explorer.EXE
Token: SeDebugPrivilege	1852	ipconfig.exe
Token: SeShutdownPrivilege	3440	Explorer.EXE
Token: SeCreatePagefilePrivilege	3440	Explorer.EXE
Token: SeShutdownPrivilege	3440	Explorer.EXE
Token: SeCreatePagefilePrivilege	3440	Explorer.EXE

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
4564	d8b35495d596fa9369df3a9e5d95da70N.exe
4564	d8b35495d596fa9369df3a9e5d95da70N.exe
3440	Explorer.EXE
3440	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
4564	d8b35495d596fa9369df3a9e5d95da70N.exe
4564	d8b35495d596fa9369df3a9e5d95da70N.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3440	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4564 wrote to memory of 3172	4564	d8b35495d596fa9369df3a9e5d95da70N.exe	87
PID 4564 wrote to memory of 3172	4564	d8b35495d596fa9369df3a9e5d95da70N.exe	87
PID 4564 wrote to memory of 3172	4564	d8b35495d596fa9369df3a9e5d95da70N.exe	87
PID 4564 wrote to memory of 3172	4564	d8b35495d596fa9369df3a9e5d95da70N.exe	87
PID 3440 wrote to memory of 1852	3440	Explorer.EXE	88
PID 3440 wrote to memory of 1852	3440	Explorer.EXE	88
PID 3440 wrote to memory of 1852	3440	Explorer.EXE	88
PID 1852 wrote to memory of 3292	1852	ipconfig.exe	94
PID 1852 wrote to memory of 3292	1852	ipconfig.exe	94
PID 1852 wrote to memory of 3292	1852	ipconfig.exe	94

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3440
- C:\Users\Admin\AppData\Local\Temp\d8b35495d596fa9369df3a9e5d95da70N.exe
  "C:\Users\Admin\AppData\Local\Temp\d8b35495d596fa9369df3a9e5d95da70N.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:4564
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\d8b35495d596fa9369df3a9e5d95da70N.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3172
- C:\Windows\SysWOW64\ipconfig.exe
  "C:\Windows\SysWOW64\ipconfig.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:1852
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3292

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

1

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/1852-17-0x0000000000F00000-0x0000000000F0B000-memory.dmp

Filesize
44KB

Download
memory/1852-18-0x0000000000F00000-0x0000000000F0B000-memory.dmp

Filesize
44KB

Download
memory/1852-19-0x0000000000ED0000-0x0000000000EFF000-memory.dmp

Filesize
188KB

Download
memory/3172-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3172-12-0x0000000001300000-0x000000000164A000-memory.dmp

Filesize
3.3MB

Download
memory/3172-15-0x0000000001160000-0x0000000001174000-memory.dmp

Filesize
80KB

Download
memory/3172-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3440-16-0x0000000007EE0000-0x0000000007FB4000-memory.dmp

Filesize
848KB

Download
memory/3440-23-0x0000000008920000-0x0000000008A37000-memory.dmp

Filesize
1.1MB

Download
memory/3440-24-0x0000000008920000-0x0000000008A37000-memory.dmp

Filesize
1.1MB

Download
memory/3440-27-0x0000000008920000-0x0000000008A37000-memory.dmp

Filesize
1.1MB

Download
memory/4564-10-0x0000000001FA0000-0x0000000001FA4000-memory.dmp

Filesize
16KB

Download

Analysis

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