formbook | 58aa05be02add83459b2a846f508ae9dd7db5045af90c886def45179da9daebe

Analysis

max time kernel
149s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23-12-2024 14:22

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General

Target

c478555.exe
Size

413KB
MD5

a4c118271f24db37f4b2169b107fee2b
SHA1

44a2558c6d4c3d87a12a54e43b72d0e782d27ed9
SHA256

10c780fc7475e86625f03e436acf7140e49b66bd7cb8c483330c9707c4b391b8
SHA512

36ab713f0eac9c4f847574775f78586619a29b9adab0bc11ce1ced10c66cb4e5f9c528d751b416e1138441ae2a55d4f453004e94f41c78fce912f64d3ab51835
SSDEEP

6144:4Kf+0/hitjkl6Vgr/WOjKkFBY5RqspzRkrjAEKc:h2glbe+KCBY5RXzRMMEKc

Score

10^/10

formbook r2y discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

r2y

Decoy

jmhuif.com

rocksutoparts.com

thechangeisyours.com

chicosuke.com

craftycreationsevents.com

8811xxda.com

guiafisioterapia.com

publicidadcam.com

birdadmirer.com

persuasivetees.com

wormsnfu.com

hitstag.com

lojabestway.com

morefrommarbeth.com

gp-partners.com

itspore.com

fastlanefabian.com

lasham-web.com

westinghouseco.com

albaturkvatifbank.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
behavioral1/memory/844-206-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/844-210-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/844-214-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Executes dropped EXE 1 IoCs

pid	Process
844	AddInProcess32.exe

Loads dropped DLL 2 IoCs

pid	Process
2792	c478555.exe
2792	c478555.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2792 set thread context of 844	2792	c478555.exe	31
PID 844 set thread context of 1100	844	AddInProcess32.exe	19
PID 844 set thread context of 1100	844	AddInProcess32.exe	19
PID 3068 set thread context of 1100	3068	wscript.exe	19

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	c478555.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AddInProcess32.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 23 IoCs

pid	Process
2792	c478555.exe
844	AddInProcess32.exe
844	AddInProcess32.exe
844	AddInProcess32.exe
3068	wscript.exe
3068	wscript.exe
3068	wscript.exe
3068	wscript.exe
3068	wscript.exe
3068	wscript.exe
3068	wscript.exe
3068	wscript.exe
3068	wscript.exe
3068	wscript.exe
3068	wscript.exe
3068	wscript.exe
3068	wscript.exe
3068	wscript.exe
3068	wscript.exe
3068	wscript.exe
3068	wscript.exe
3068	wscript.exe
3068	wscript.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
844	AddInProcess32.exe
844	AddInProcess32.exe
844	AddInProcess32.exe
844	AddInProcess32.exe
3068	wscript.exe
3068	wscript.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2792	c478555.exe
Token: SeDebugPrivilege	844	AddInProcess32.exe
Token: SeDebugPrivilege	3068	wscript.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2792 wrote to memory of 844	2792	c478555.exe	31
PID 2792 wrote to memory of 844	2792	c478555.exe	31
PID 2792 wrote to memory of 844	2792	c478555.exe	31
PID 2792 wrote to memory of 844	2792	c478555.exe	31
PID 2792 wrote to memory of 844	2792	c478555.exe	31
PID 2792 wrote to memory of 844	2792	c478555.exe	31
PID 2792 wrote to memory of 844	2792	c478555.exe	31
PID 844 wrote to memory of 3068	844	AddInProcess32.exe	32
PID 844 wrote to memory of 3068	844	AddInProcess32.exe	32
PID 844 wrote to memory of 3068	844	AddInProcess32.exe	32
PID 844 wrote to memory of 3068	844	AddInProcess32.exe	32
PID 3068 wrote to memory of 1720	3068	wscript.exe	33
PID 3068 wrote to memory of 1720	3068	wscript.exe	33
PID 3068 wrote to memory of 1720	3068	wscript.exe	33
PID 3068 wrote to memory of 1720	3068	wscript.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1100
- C:\Users\Admin\AppData\Local\Temp\c478555.exe
  "C:\Users\Admin\AppData\Local\Temp\c478555.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2792
- - C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
    "C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
    3⤵
    - Executes dropped EXE
    - 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:844
  - - C:\Windows\SysWOW64\wscript.exe
      "C:\Windows\SysWOW64\wscript.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:3068
    - - C:\Windows\SysWOW64\cmd.exe
        
        /c del "C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:1720

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\19f93e2a-4d97-4e0c-ade5-972e41ee6cf8\f.dll

Filesize
94KB

MD5
14ff402962ad21b78ae0b4c43cd1f194

SHA1
f8a510eb26666e875a5bdd1cadad40602763ad72

SHA256
fb9646cb956945bdc503e69645f6b5316d3826b780d3c36738d6b944e884d15b

SHA512
daa7a08bf3709119a944bce28f6ebdd24e54a22b18cd9f86a87873e958df121a3881dcdd5e162f6b4e543238c7aef20f657c9830df01d4c79290f7c9a4fcc54b

Download Submit
\Users\Admin\AppData\Local\Temp\AddInProcess32.exe

Filesize
41KB

MD5
6a673bfc3b67ae9782cb31af2f234c68

SHA1
7544e89566d91e84e3cd437b9a073e5f6b56566e

SHA256
978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

SHA512
72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

Download Submit
memory/844-214-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/844-215-0x00000000002F0000-0x0000000000304000-memory.dmp

Filesize
80KB

Download
memory/844-210-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/844-211-0x00000000001A0000-0x00000000001B4000-memory.dmp

Filesize
80KB

Download
memory/844-208-0x0000000000950000-0x0000000000C53000-memory.dmp

Filesize
3.0MB

Download
memory/844-206-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1100-222-0x0000000004E50000-0x0000000004F06000-memory.dmp

Filesize
728KB

Download
memory/1100-217-0x0000000004540000-0x0000000004625000-memory.dmp

Filesize
916KB

Download
memory/1100-216-0x0000000004E50000-0x0000000004F06000-memory.dmp

Filesize
728KB

Download
memory/1100-212-0x0000000004540000-0x0000000004625000-memory.dmp

Filesize
916KB

Download
memory/2792-30-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-18-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-64-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-62-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-58-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-56-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-54-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-52-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-50-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-48-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-44-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-42-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-40-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-38-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-36-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-32-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-0-0x00000000746BE000-0x00000000746BF000-memory.dmp

Filesize
4KB

Download
memory/2792-28-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-26-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-24-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-22-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-66-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-16-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-14-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-12-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-11-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-191-0x00000000746BE000-0x00000000746BF000-memory.dmp

Filesize
4KB

Download
memory/2792-192-0x00000000746B0000-0x0000000074D9E000-memory.dmp

Filesize
6.9MB

Download
memory/2792-194-0x00000000746B0000-0x0000000074D9E000-memory.dmp

Filesize
6.9MB

Download
memory/2792-195-0x00000000746B0000-0x0000000074D9E000-memory.dmp

Filesize
6.9MB

Download
memory/2792-196-0x0000000000540000-0x000000000054C000-memory.dmp

Filesize
48KB

Download
memory/2792-68-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-70-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-207-0x00000000746B0000-0x0000000074D9E000-memory.dmp

Filesize
6.9MB

Download
memory/2792-72-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-60-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-46-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-34-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-20-0x0000000000300000-0x0000000000325000-memory.dmp

Filesize
148KB

Download
memory/2792-10-0x0000000074530000-0x00000000745B0000-memory.dmp

Filesize
512KB

Download
memory/2792-3-0x0000000000300000-0x000000000032C000-memory.dmp

Filesize
176KB

Download
memory/2792-2-0x00000000746B0000-0x0000000074D9E000-memory.dmp

Filesize
6.9MB

Download
memory/2792-1-0x0000000000B10000-0x0000000000B7E000-memory.dmp

Filesize
440KB

Download
memory/3068-220-0x0000000000AD0000-0x0000000000AF6000-memory.dmp

Filesize
152KB

Download