formbook | 24380c6d7b340557a8e71c58078bd0ed311e3c42b975a75d23a0056210e2ad3e

Analysis

max time kernel
149s
max time network
145s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
03/05/2023, 13:50

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General

Target

invoice.exe
Size

727KB
MD5

b0ca2f76a71ba322dab26bfb0eae3977
SHA1

f3e9c81c880ec14019280b6624e1092a65496b5a
SHA256

24380c6d7b340557a8e71c58078bd0ed311e3c42b975a75d23a0056210e2ad3e
SHA512

529eaf4481770e3940a8e3323ba9260485d9bf5a60632b7ecc38522b8ca39f94534ab8f073500839ae03600339830ae435a143b04a7a9ba46786764b2680cc19
SSDEEP

12288:EB6C6YN1PCGEDUuCkaRundIbjl7GlU+1FlQhLdzQEdCcZKW7/e3w:zLcLRunmfFmjnCCcZh7/e3w

Score

10^/10

formbook m82 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

m82

Decoy

jamesdevereux.com

artificialturfminneapolis.com

hongmeiyan.com

lojaderoupasbr.com

yit.africa

austinrelocationexpert.com

saiva.page

exitsategy.com

chochonux.com

klosterbraeu-unterliezheim.com

byseymanur.com

sblwarwickshire.co.uk

brazimaid.com

ciogame.com

bronzesailing.com

dwkapl.xyz

022dyd.com

compassandpathwriting.com

alphabet1x.com

selfcleaninghairbrush.co.uk

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/520-66-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/520-71-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/520-74-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/300-77-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook
behavioral1/memory/300-79-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 528 set thread context of 520	528	invoice.exe	33
PID 520 set thread context of 1200	520	RegSvcs.exe	14
PID 520 set thread context of 1200	520	RegSvcs.exe	14
PID 300 set thread context of 1200	300	wlanext.exe	14

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
736	schtasks.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

pid	Process
528	invoice.exe
528	invoice.exe
528	invoice.exe
528	invoice.exe
520	RegSvcs.exe
520	RegSvcs.exe
520	RegSvcs.exe
300	wlanext.exe
300	wlanext.exe
300	wlanext.exe
300	wlanext.exe
300	wlanext.exe
300	wlanext.exe
300	wlanext.exe
300	wlanext.exe
300	wlanext.exe
300	wlanext.exe
300	wlanext.exe
300	wlanext.exe
300	wlanext.exe
300	wlanext.exe
300	wlanext.exe
300	wlanext.exe
300	wlanext.exe
300	wlanext.exe
300	wlanext.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1200	Explorer.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
520	RegSvcs.exe
520	RegSvcs.exe
520	RegSvcs.exe
520	RegSvcs.exe
300	wlanext.exe
300	wlanext.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	528	invoice.exe
Token: SeDebugPrivilege	520	RegSvcs.exe
Token: SeDebugPrivilege	300	wlanext.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1200	Explorer.EXE
1200	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1200	Explorer.EXE
1200	Explorer.EXE

Suspicious use of WriteProcessMemory 43 IoCs

description	pid	Process	procid_target
PID 528 wrote to memory of 736	528	invoice.exe	28
PID 528 wrote to memory of 736	528	invoice.exe	28
PID 528 wrote to memory of 736	528	invoice.exe	28
PID 528 wrote to memory of 736	528	invoice.exe	28
PID 528 wrote to memory of 580	528	invoice.exe	30
PID 528 wrote to memory of 580	528	invoice.exe	30
PID 528 wrote to memory of 580	528	invoice.exe	30
PID 528 wrote to memory of 580	528	invoice.exe	30
PID 528 wrote to memory of 580	528	invoice.exe	30
PID 528 wrote to memory of 580	528	invoice.exe	30
PID 528 wrote to memory of 580	528	invoice.exe	30
PID 528 wrote to memory of 1368	528	invoice.exe	31
PID 528 wrote to memory of 1368	528	invoice.exe	31
PID 528 wrote to memory of 1368	528	invoice.exe	31
PID 528 wrote to memory of 1368	528	invoice.exe	31
PID 528 wrote to memory of 1368	528	invoice.exe	31
PID 528 wrote to memory of 1368	528	invoice.exe	31
PID 528 wrote to memory of 1368	528	invoice.exe	31
PID 528 wrote to memory of 268	528	invoice.exe	32
PID 528 wrote to memory of 268	528	invoice.exe	32
PID 528 wrote to memory of 268	528	invoice.exe	32
PID 528 wrote to memory of 268	528	invoice.exe	32
PID 528 wrote to memory of 268	528	invoice.exe	32
PID 528 wrote to memory of 268	528	invoice.exe	32
PID 528 wrote to memory of 268	528	invoice.exe	32
PID 528 wrote to memory of 520	528	invoice.exe	33
PID 528 wrote to memory of 520	528	invoice.exe	33
PID 528 wrote to memory of 520	528	invoice.exe	33
PID 528 wrote to memory of 520	528	invoice.exe	33
PID 528 wrote to memory of 520	528	invoice.exe	33
PID 528 wrote to memory of 520	528	invoice.exe	33
PID 528 wrote to memory of 520	528	invoice.exe	33
PID 528 wrote to memory of 520	528	invoice.exe	33
PID 528 wrote to memory of 520	528	invoice.exe	33
PID 528 wrote to memory of 520	528	invoice.exe	33
PID 1200 wrote to memory of 300	1200	Explorer.EXE	60
PID 1200 wrote to memory of 300	1200	Explorer.EXE	60
PID 1200 wrote to memory of 300	1200	Explorer.EXE	60
PID 1200 wrote to memory of 300	1200	Explorer.EXE	60
PID 300 wrote to memory of 1528	300	wlanext.exe	61
PID 300 wrote to memory of 1528	300	wlanext.exe	61
PID 300 wrote to memory of 1528	300	wlanext.exe	61
PID 300 wrote to memory of 1528	300	wlanext.exe	61

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1200
- C:\Users\Admin\AppData\Local\Temp\invoice.exe
  "C:\Users\Admin\AppData\Local\Temp\invoice.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:528
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ROfIBwzK" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6E00.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:736
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "{path}"
    3⤵
    PID:580
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "{path}"
    3⤵
    PID:1368
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "{path}"
    3⤵
    PID:268
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "{path}"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:520
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:284
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1764
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:672
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1852
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:108
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1708
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1576
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1792
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1564
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:552
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1948
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1892
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1780
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:740
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1232
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:524
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:768
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:620
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:980
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1788
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1080
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1152
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1288
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:816
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1040
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1664
- 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:300
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    PID:1528

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp6E00.tmp

Filesize
1KB

MD5
9cff0ca77a4ee5c901f1bd2e1b557f96

SHA1
dd215876d2ac54f4d77761532b48eb4216ee3411

SHA256
0d924cdf3f1a216880c7da02d16733092a072e541b39028b90629ae765da8223

SHA512
d5ca6e9cbc7ec3e47c5d4ea29c19571495a4352c7f729c9821cd09f583a0713de2c80fd0f854a928f7805193b580ecaf16f7ca097c35821223f2ebed8c6af8b2

Download Submit
memory/300-75-0x0000000000930000-0x0000000000946000-memory.dmp

Filesize
88KB

Download
memory/300-82-0x0000000000850000-0x00000000008E4000-memory.dmp

Filesize
592KB

Download
memory/300-79-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/300-78-0x00000000021B0000-0x00000000024B3000-memory.dmp

Filesize
3.0MB

Download
memory/300-77-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/300-76-0x0000000000930000-0x0000000000946000-memory.dmp

Filesize
88KB

Download
memory/520-74-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/520-71-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/520-64-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/520-66-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/520-68-0x0000000000B30000-0x0000000000E33000-memory.dmp

Filesize
3.0MB

Download
memory/520-65-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/520-69-0x00000000001A0000-0x00000000001B5000-memory.dmp

Filesize
84KB

Download
memory/520-63-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/520-72-0x0000000000230000-0x0000000000245000-memory.dmp

Filesize
84KB

Download
memory/528-55-0x0000000004E20000-0x0000000004E60000-memory.dmp

Filesize
256KB

Download
memory/528-56-0x0000000000450000-0x000000000045C000-memory.dmp

Filesize
48KB

Download
memory/528-54-0x0000000001040000-0x00000000010FC000-memory.dmp

Filesize
752KB

Download
memory/528-59-0x00000000047D0000-0x000000000481A000-memory.dmp

Filesize
296KB

Download
memory/528-58-0x0000000004D50000-0x0000000004DEC000-memory.dmp

Filesize
624KB

Download
memory/528-57-0x0000000004E20000-0x0000000004E60000-memory.dmp

Filesize
256KB

Download
memory/1200-70-0x0000000004CA0000-0x0000000004E16000-memory.dmp

Filesize
1.5MB

Download
memory/1200-73-0x0000000004E20000-0x0000000004F8E000-memory.dmp

Filesize
1.4MB

Download
memory/1200-83-0x0000000006430000-0x0000000006545000-memory.dmp

Filesize
1.1MB

Download
memory/1200-84-0x0000000006430000-0x0000000006545000-memory.dmp

Filesize
1.1MB

Download
memory/1200-86-0x0000000006430000-0x0000000006545000-memory.dmp

Filesize
1.1MB

Download