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 3 IoCs

rat

resource	yara_rule
behavioral2/memory/4032-14-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4032-19-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3560-24-0x0000000000350000-0x000000000037F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2380 set thread context of 4032	2380	skmbt ref 10072022.exe	101
PID 4032 set thread context of 3508	4032	skmbt ref 10072022.exe	56
PID 3560 set thread context of 3508	3560	wscript.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	skmbt ref 10072022.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wscript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 48 IoCs

pid	Process
2380	skmbt ref 10072022.exe
2380	skmbt ref 10072022.exe
2380	skmbt ref 10072022.exe
2380	skmbt ref 10072022.exe
4032	skmbt ref 10072022.exe
4032	skmbt ref 10072022.exe
4032	skmbt ref 10072022.exe
4032	skmbt ref 10072022.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe
3560	wscript.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4032	skmbt ref 10072022.exe
4032	skmbt ref 10072022.exe
4032	skmbt ref 10072022.exe
3560	wscript.exe
3560	wscript.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2380	skmbt ref 10072022.exe
Token: SeDebugPrivilege	4032	skmbt ref 10072022.exe
Token: SeDebugPrivilege	3560	wscript.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 1768	2380	skmbt ref 10072022.exe	99
PID 2380 wrote to memory of 1768	2380	skmbt ref 10072022.exe	99
PID 2380 wrote to memory of 1768	2380	skmbt ref 10072022.exe	99
PID 2380 wrote to memory of 4396	2380	skmbt ref 10072022.exe	100
PID 2380 wrote to memory of 4396	2380	skmbt ref 10072022.exe	100
PID 2380 wrote to memory of 4396	2380	skmbt ref 10072022.exe	100
PID 2380 wrote to memory of 4032	2380	skmbt ref 10072022.exe	101
PID 2380 wrote to memory of 4032	2380	skmbt ref 10072022.exe	101
PID 2380 wrote to memory of 4032	2380	skmbt ref 10072022.exe	101
PID 2380 wrote to memory of 4032	2380	skmbt ref 10072022.exe	101
PID 2380 wrote to memory of 4032	2380	skmbt ref 10072022.exe	101
PID 2380 wrote to memory of 4032	2380	skmbt ref 10072022.exe	101
PID 3508 wrote to memory of 3560	3508	Explorer.EXE	102
PID 3508 wrote to memory of 3560	3508	Explorer.EXE	102
PID 3508 wrote to memory of 3560	3508	Explorer.EXE	102
PID 3560 wrote to memory of 4348	3560	wscript.exe	103
PID 3560 wrote to memory of 4348	3560	wscript.exe	103
PID 3560 wrote to memory of 4348	3560	wscript.exe	103

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3508
- 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 behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2380
- - C:\Users\Admin\AppData\Local\Temp\skmbt ref 10072022.exe
    "C:\Users\Admin\AppData\Local\Temp\skmbt ref 10072022.exe"
    3⤵
    PID:1768
- - C:\Users\Admin\AppData\Local\Temp\skmbt ref 10072022.exe
    "C:\Users\Admin\AppData\Local\Temp\skmbt ref 10072022.exe"
    3⤵
    PID:4396
- - 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
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4032
- C:\Windows\SysWOW64\wscript.exe
  "C:\Windows\SysWOW64\wscript.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:3560
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\skmbt ref 10072022.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4348

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/2380-12-0x0000000009EA0000-0x0000000009F06000-memory.dmp

Filesize
408KB

Download
memory/2380-7-0x0000000074A3E000-0x0000000074A3F000-memory.dmp

Filesize
4KB

Download
memory/2380-2-0x0000000005FF0000-0x0000000006594000-memory.dmp

Filesize
5.6MB

Download
memory/2380-3-0x0000000005A40000-0x0000000005AD2000-memory.dmp

Filesize
584KB

Download
memory/2380-4-0x0000000074A30000-0x00000000751E0000-memory.dmp

Filesize
7.7MB

Download
memory/2380-5-0x00000000059F0000-0x00000000059FA000-memory.dmp

Filesize
40KB

Download
memory/2380-6-0x0000000007420000-0x0000000007438000-memory.dmp

Filesize
96KB

Download
memory/2380-16-0x0000000074A30000-0x00000000751E0000-memory.dmp

Filesize
7.7MB

Download
memory/2380-8-0x0000000074A30000-0x00000000751E0000-memory.dmp

Filesize
7.7MB

Download
memory/2380-9-0x0000000006F20000-0x0000000006F2C000-memory.dmp

Filesize
48KB

Download
memory/2380-10-0x0000000009C50000-0x0000000009CDE000-memory.dmp

Filesize
568KB

Download
memory/2380-13-0x0000000009D40000-0x0000000009D74000-memory.dmp

Filesize
208KB

Download
memory/2380-1-0x0000000000F50000-0x0000000001040000-memory.dmp

Filesize
960KB

Download
memory/2380-0-0x0000000074A3E000-0x0000000074A3F000-memory.dmp

Filesize
4KB

Download
memory/2380-11-0x0000000009D90000-0x0000000009E2C000-memory.dmp

Filesize
624KB

Download
memory/3508-29-0x0000000008C70000-0x0000000008D8E000-memory.dmp

Filesize
1.1MB

Download
memory/3508-21-0x0000000009550000-0x00000000096E8000-memory.dmp

Filesize
1.6MB

Download
memory/3508-25-0x0000000009550000-0x00000000096E8000-memory.dmp

Filesize
1.6MB

Download
memory/3508-30-0x0000000008C70000-0x0000000008D8E000-memory.dmp

Filesize
1.1MB

Download
memory/3508-32-0x0000000008C70000-0x0000000008D8E000-memory.dmp

Filesize
1.1MB

Download
memory/3560-22-0x0000000000CE0000-0x0000000000D07000-memory.dmp

Filesize
156KB

Download
memory/3560-23-0x0000000000CE0000-0x0000000000D07000-memory.dmp

Filesize
156KB

Download
memory/3560-24-0x0000000000350000-0x000000000037F000-memory.dmp

Filesize
188KB

Download
memory/4032-17-0x00000000017B0000-0x0000000001AFA000-memory.dmp

Filesize
3.3MB

Download
memory/4032-20-0x00000000014E0000-0x00000000014F4000-memory.dmp

Filesize
80KB

Download
memory/4032-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4032-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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