formbook | 39cc1cd072be2976fc1654bdead4ac7f03efc8e59a74368a0b5d4945ce2c5544

General

Target

order #6122-001.exe
Size

242KB
MD5

f51456d6ef5bc0e72c16b65dd5b4776b
SHA1

6773d982b2daf7f2a253841e47fd65dfb4f4962d
SHA256

8cfdf661efbae4657da9021a442cc1598eb969be3f6ef598041e496d293f75d1
SHA512

cf8b8b7c7cd6f76b3239b1272b2c9c1af45802571849b05c9803f7e8c3f6373fb2fbb4ca204f9547654ef2ccfa7778513a39087ed1a14037671244fb64a77245
SSDEEP

3072:3fY/TU9fE9PEtuabkIcXE//kcXYSZtE6+YIrH4ZVL8WdPl5XIlI9G9S41NJyWDbB:vYa6KpcXpofgiIrcBslI9G9S8JyW/B

Score

10^/10

formbook sn26 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

sn26

Decoy

resenha10.bet

gulshan-rajput.com

xbus.tech

z813my.cfd

wlxzjlny.cfd

auntengotiempo.com

canada-reservation.com

thegiftcompany.shop

esthersilveirapropiedades.com

1wapws.top

ymjblnvo.cfd

termokimik.net

kushiro-artist-school.com

bmmboo.com

caceresconstructionservices.com

kentuckywalkabout.com

bringyourcart.com

miamiwinetour.com

bobcatsocial.site

thirdmind.network

Signatures

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

Formbook payload 5 IoCs

rat

resource	yara_rule
behavioral1/memory/2420-62-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2420-65-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2420-70-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2152-78-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook
behavioral1/memory/2152-80-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
2896	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
2328	order #6122-001.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2328 set thread context of 2420	2328	order #6122-001.exe	28
PID 2420 set thread context of 1292	2420	order #6122-001.exe	21
PID 2420 set thread context of 1292	2420	order #6122-001.exe	21
PID 2152 set thread context of 1292	2152	wlanext.exe	21

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 30 IoCs

pid	Process
2420	order #6122-001.exe
2420	order #6122-001.exe
2420	order #6122-001.exe
2152	wlanext.exe
2152	wlanext.exe
2152	wlanext.exe
2152	wlanext.exe
2152	wlanext.exe
2152	wlanext.exe
2152	wlanext.exe
2152	wlanext.exe
2152	wlanext.exe
2152	wlanext.exe
2152	wlanext.exe
2152	wlanext.exe
2152	wlanext.exe
2152	wlanext.exe
2152	wlanext.exe
2152	wlanext.exe
2152	wlanext.exe
2152	wlanext.exe
2152	wlanext.exe
2152	wlanext.exe
2152	wlanext.exe
2152	wlanext.exe
2152	wlanext.exe
2152	wlanext.exe
2152	wlanext.exe
2152	wlanext.exe
2152	wlanext.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1292	Explorer.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
2328	order #6122-001.exe
2420	order #6122-001.exe
2420	order #6122-001.exe
2420	order #6122-001.exe
2420	order #6122-001.exe
2152	wlanext.exe
2152	wlanext.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2420	order #6122-001.exe
Token: SeDebugPrivilege	2152	wlanext.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
1292	Explorer.EXE

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2328 wrote to memory of 2420	2328	order #6122-001.exe	28
PID 2328 wrote to memory of 2420	2328	order #6122-001.exe	28
PID 2328 wrote to memory of 2420	2328	order #6122-001.exe	28
PID 2328 wrote to memory of 2420	2328	order #6122-001.exe	28
PID 2328 wrote to memory of 2420	2328	order #6122-001.exe	28
PID 1292 wrote to memory of 2152	1292	Explorer.EXE	29
PID 1292 wrote to memory of 2152	1292	Explorer.EXE	29
PID 1292 wrote to memory of 2152	1292	Explorer.EXE	29
PID 1292 wrote to memory of 2152	1292	Explorer.EXE	29
PID 2152 wrote to memory of 2896	2152	wlanext.exe	30
PID 2152 wrote to memory of 2896	2152	wlanext.exe	30
PID 2152 wrote to memory of 2896	2152	wlanext.exe	30
PID 2152 wrote to memory of 2896	2152	wlanext.exe	30

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1292
- C:\Users\Admin\AppData\Local\Temp\order #6122-001.exe
  "C:\Users\Admin\AppData\Local\Temp\order #6122-001.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2328
- - C:\Users\Admin\AppData\Local\Temp\order #6122-001.exe
    "C:\Users\Admin\AppData\Local\Temp\order #6122-001.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2420
- C:\Windows\SysWOW64\wlanext.exe
  "C:\Windows\SysWOW64\wlanext.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2152
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\order #6122-001.exe"
    3⤵
    - Deletes itself
    PID:2896

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nso7CD0.tmp\chrqbxkxz.dll

Filesize
45KB

MD5
3369816188e971e4163f3013a8120f01

SHA1
532dbc33b6d853773e2b6038efc9f09b6a9d5485

SHA256
bb1c9952d5e01475bea5195623ed2117a069327760c1b662664ffd8f69ee335e

SHA512
838be5920a6879f468cb668ec643698c49e5b9e36481b8f86efffde10c0bfd24ab86209ad621bbc971d4af0c66ee3143f901810926d9a1b635587aa933af7085

Download Submit
\Users\Admin\AppData\Local\Temp\nso7CD0.tmp\chrqbxkxz.dll

Filesize
45KB

MD5
3369816188e971e4163f3013a8120f01

SHA1
532dbc33b6d853773e2b6038efc9f09b6a9d5485

SHA256
bb1c9952d5e01475bea5195623ed2117a069327760c1b662664ffd8f69ee335e

SHA512
838be5920a6879f468cb668ec643698c49e5b9e36481b8f86efffde10c0bfd24ab86209ad621bbc971d4af0c66ee3143f901810926d9a1b635587aa933af7085

Download Submit
memory/1292-72-0x0000000003A00000-0x0000000003AD6000-memory.dmp

Filesize
856KB

Download
memory/1292-88-0x0000000006420000-0x00000000064C9000-memory.dmp

Filesize
676KB

Download
memory/1292-86-0x0000000006420000-0x00000000064C9000-memory.dmp

Filesize
676KB

Download
memory/1292-85-0x0000000006420000-0x00000000064C9000-memory.dmp

Filesize
676KB

Download
memory/1292-66-0x0000000002DD0000-0x0000000002ED0000-memory.dmp

Filesize
1024KB

Download
memory/1292-84-0x0000000003E60000-0x0000000004060000-memory.dmp

Filesize
2.0MB

Download
memory/1292-81-0x0000000003A00000-0x0000000003AD6000-memory.dmp

Filesize
856KB

Download
memory/1292-68-0x0000000008680000-0x0000000008800000-memory.dmp

Filesize
1.5MB

Download
memory/2152-79-0x0000000001FB0000-0x00000000022B3000-memory.dmp

Filesize
3.0MB

Download
memory/2152-74-0x0000000000B90000-0x0000000000BA6000-memory.dmp

Filesize
88KB

Download
memory/2152-76-0x0000000000B90000-0x0000000000BA6000-memory.dmp

Filesize
88KB

Download
memory/2152-78-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2152-80-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2152-83-0x0000000000820000-0x00000000008B4000-memory.dmp

Filesize
592KB

Download
memory/2328-61-0x0000000000360000-0x0000000000362000-memory.dmp

Filesize
8KB

Download
memory/2420-71-0x00000000005C0000-0x00000000005D5000-memory.dmp

Filesize
84KB

Download
memory/2420-70-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2420-67-0x00000000003E0000-0x00000000003F5000-memory.dmp

Filesize
84KB

Download
memory/2420-65-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2420-63-0x0000000000770000-0x0000000000A73000-memory.dmp

Filesize
3.0MB

Download
memory/2420-62-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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