formbook | 969cb2fae273298ed86e1da4978a64602e09424ad1e207b2fda172a614842c95

General

Target

skmbt ref 10072022.exe
Size

933KB
MD5

dc681c0d1b1a68760efaa3d0e30c265c
SHA1

b9af8e985e07a8ca11a5b81e7353428015c824ad
SHA256

866ff728d933b6a13b260cb79be66e9d17069f15fb7458673d313f6d7590864a
SHA512

fb1b39aba32987f6a84617870e5b3cfc9a6c54726979ad9608082b78135d91a35fd4c4ae7bd63f90c35e51d138c9d7952d93daef9ebc62f4dcbb880fd23d5de2
SSDEEP

12288:wGrI2iNQxZU/LPBBmJw5afc8WBuSSVwwuizH+BllvMo3Y6J2u:wGs1gUjPBwwIWcSSSeze3d3Q

Score

10^/10

formbook a1n9 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

a1n9

Decoy

mundodasmaquininhas.net

smop2.info

xn--chriemonrve-cbbu.com

kalebet977.com

inmobiliarianb.com

watersmartaz.com

xyz.gallery

sadiztech.com

traiteur-albi.fr

blocks.icu

hangrypancreas.com

saysosoulcards.com

rightforearth.com

swifty.network

bettwsrfc.co.uk

bcausemarketing.com

thaibjbar.com

zurisfashion.store

optimisescreencleaner.com

couponsjoe.com

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/2000-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2000-19-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2000-23-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2080-30-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
2592	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2852 set thread context of 2000	2852	skmbt ref 10072022.exe	31
PID 2000 set thread context of 1212	2000	skmbt ref 10072022.exe	21
PID 2000 set thread context of 1212	2000	skmbt ref 10072022.exe	21
PID 2080 set thread context of 1212	2080	wlanext.exe	21

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	skmbt ref 10072022.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	skmbt ref 10072022.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wlanext.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
2000	skmbt ref 10072022.exe
2000	skmbt ref 10072022.exe
2000	skmbt ref 10072022.exe
2080	wlanext.exe
2080	wlanext.exe
2080	wlanext.exe
2080	wlanext.exe
2080	wlanext.exe
2080	wlanext.exe
2080	wlanext.exe
2080	wlanext.exe
2080	wlanext.exe
2080	wlanext.exe
2080	wlanext.exe
2080	wlanext.exe
2080	wlanext.exe
2080	wlanext.exe
2080	wlanext.exe
2080	wlanext.exe
2080	wlanext.exe
2080	wlanext.exe
2080	wlanext.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2000	skmbt ref 10072022.exe
2000	skmbt ref 10072022.exe
2000	skmbt ref 10072022.exe
2000	skmbt ref 10072022.exe
2080	wlanext.exe
2080	wlanext.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2000	skmbt ref 10072022.exe
Token: SeDebugPrivilege	2080	wlanext.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2852 wrote to memory of 2000	2852	skmbt ref 10072022.exe	31
PID 2852 wrote to memory of 2000	2852	skmbt ref 10072022.exe	31
PID 2852 wrote to memory of 2000	2852	skmbt ref 10072022.exe	31
PID 2852 wrote to memory of 2000	2852	skmbt ref 10072022.exe	31
PID 2852 wrote to memory of 2000	2852	skmbt ref 10072022.exe	31
PID 2852 wrote to memory of 2000	2852	skmbt ref 10072022.exe	31
PID 2852 wrote to memory of 2000	2852	skmbt ref 10072022.exe	31
PID 2000 wrote to memory of 2080	2000	skmbt ref 10072022.exe	32
PID 2000 wrote to memory of 2080	2000	skmbt ref 10072022.exe	32
PID 2000 wrote to memory of 2080	2000	skmbt ref 10072022.exe	32
PID 2000 wrote to memory of 2080	2000	skmbt ref 10072022.exe	32
PID 2080 wrote to memory of 2592	2080	wlanext.exe	33
PID 2080 wrote to memory of 2592	2080	wlanext.exe	33
PID 2080 wrote to memory of 2592	2080	wlanext.exe	33
PID 2080 wrote to memory of 2592	2080	wlanext.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1212
- C:\Users\Admin\AppData\Local\Temp\skmbt ref 10072022.exe
  "C:\Users\Admin\AppData\Local\Temp\skmbt ref 10072022.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2852
- - C:\Users\Admin\AppData\Local\Temp\skmbt ref 10072022.exe
    "C:\Users\Admin\AppData\Local\Temp\skmbt ref 10072022.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:2000
  - - C:\Windows\SysWOW64\wlanext.exe
      "C:\Windows\SysWOW64\wlanext.exe"
      4⤵
      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:2080
    - - C:\Windows\SysWOW64\cmd.exe
        
        /c del "C:\Users\Admin\AppData\Local\Temp\skmbt ref 10072022.exe"
        5⤵
        Deletes itself
        System Location Discovery: System Language Discovery
        
        PID:2592

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

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Downloads

memory/1212-21-0x00000000066A0000-0x0000000006764000-memory.dmp

Filesize
784KB

Download
memory/1212-29-0x00000000080E0000-0x000000000828F000-memory.dmp

Filesize
1.7MB

Download
memory/1212-26-0x00000000080E0000-0x000000000828F000-memory.dmp

Filesize
1.7MB

Download
memory/1212-25-0x00000000066A0000-0x0000000006764000-memory.dmp

Filesize
784KB

Download
memory/2000-23-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2000-20-0x00000000003D0000-0x00000000003E4000-memory.dmp

Filesize
80KB

Download
memory/2000-24-0x0000000000520000-0x0000000000534000-memory.dmp

Filesize
80KB

Download
memory/2000-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2000-17-0x0000000000C30000-0x0000000000F33000-memory.dmp

Filesize
3.0MB

Download
memory/2000-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2000-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2000-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2000-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2080-28-0x0000000000890000-0x00000000008A6000-memory.dmp

Filesize
88KB

Download
memory/2080-30-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2080-27-0x0000000000890000-0x00000000008A6000-memory.dmp

Filesize
88KB

Download
memory/2852-7-0x0000000004C20000-0x0000000004CAE000-memory.dmp

Filesize
568KB

Download
memory/2852-4-0x0000000073FFE000-0x0000000073FFF000-memory.dmp

Filesize
4KB

Download
memory/2852-0-0x0000000073FFE000-0x0000000073FFF000-memory.dmp

Filesize
4KB

Download
memory/2852-3-0x0000000000480000-0x0000000000498000-memory.dmp

Filesize
96KB

Download
memory/2852-2-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2852-6-0x00000000004A0000-0x00000000004AC000-memory.dmp

Filesize
48KB

Download
memory/2852-16-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2852-5-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2852-1-0x0000000000B40000-0x0000000000C30000-memory.dmp

Filesize
960KB

Download
memory/2852-8-0x0000000000B00000-0x0000000000B34000-memory.dmp

Filesize
208KB

Download

Analysis

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