formbook | 1ebcadef0f2790a5c28cc8d6100007eb6a82a0cf7fc582e7595fa9a3407d3049

Analysis

max time kernel
147s
max time network
125s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 17:36

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General

Target

PO.exe
Size

228KB
MD5

2593eef7b38e160b9697f2479fa8843f
SHA1

25d4d88f321321fb5b2b316fd5dbcd5bb144daa1
SHA256

b35de004189f271fe754dd614e5fbbc299425f5aca9ebf1f935bf26696964853
SHA512

c5beb57aae9c18ca5d7d73954216abc6a07871666d08a654d7b5d8e1d25b0defe9ca66eee77325bed03870a39757c85df13f868472447369bd2903ba05336a21
SSDEEP

6144:lPXIegRJRwlTL8+GiAUUv5hotXkpqfc9F40:aegRJ+q+b3kpqoj

Score

10^/10

formbook dxe discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

dxe

Decoy

sardarfarm.com

959tremont.com

privat-livecam.net

ansel-homebakery.com

joysupermarket.com

peninsulamatchmakers.net

northsytyle.com

radioconexaoubermusic.com

relocatingrealtor.com

desyrnan.com

onlinehoortoestel.online

enpointe.online

rvvikings.com

paulpoirier.com

shitarpa.net

kerneis.net

rokitreach.com

essentiallygaia.com

prestiged.net

fuerzaagavera.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
behavioral5/memory/2152-9-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral5/memory/2152-11-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral5/memory/2152-15-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
2684	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
2128	PO.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2128 set thread context of 2152	2128	PO.exe	30
PID 2152 set thread context of 1240	2152	PO.exe	21
PID 2152 set thread context of 1240	2152	PO.exe	21
PID 3048 set thread context of 1240	3048	svchost.exe	21

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

System Information Discovery
T1082

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	PO.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PO.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 30 IoCs

pid	Process
2152	PO.exe
2152	PO.exe
2152	PO.exe
3048	svchost.exe
3048	svchost.exe
3048	svchost.exe
3048	svchost.exe
3048	svchost.exe
3048	svchost.exe
3048	svchost.exe
3048	svchost.exe
3048	svchost.exe
3048	svchost.exe
3048	svchost.exe
3048	svchost.exe
3048	svchost.exe
3048	svchost.exe
3048	svchost.exe
3048	svchost.exe
3048	svchost.exe
3048	svchost.exe
3048	svchost.exe
3048	svchost.exe
3048	svchost.exe
3048	svchost.exe
3048	svchost.exe
3048	svchost.exe
3048	svchost.exe
3048	svchost.exe
3048	svchost.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
2128	PO.exe
2152	PO.exe
2152	PO.exe
2152	PO.exe
2152	PO.exe
3048	svchost.exe
3048	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2152	PO.exe
Token: SeDebugPrivilege	3048	svchost.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 2152	2128	PO.exe	30
PID 2128 wrote to memory of 2152	2128	PO.exe	30
PID 2128 wrote to memory of 2152	2128	PO.exe	30
PID 2128 wrote to memory of 2152	2128	PO.exe	30
PID 2128 wrote to memory of 2152	2128	PO.exe	30
PID 2152 wrote to memory of 3048	2152	PO.exe	32
PID 2152 wrote to memory of 3048	2152	PO.exe	32
PID 2152 wrote to memory of 3048	2152	PO.exe	32
PID 2152 wrote to memory of 3048	2152	PO.exe	32
PID 3048 wrote to memory of 2684	3048	svchost.exe	33
PID 3048 wrote to memory of 2684	3048	svchost.exe	33
PID 3048 wrote to memory of 2684	3048	svchost.exe	33
PID 3048 wrote to memory of 2684	3048	svchost.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1240
- C:\Users\Admin\AppData\Local\Temp\PO.exe
  "C:\Users\Admin\AppData\Local\Temp\PO.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2128
- - C:\Users\Admin\AppData\Local\Temp\PO.exe
    "C:\Users\Admin\AppData\Local\Temp\PO.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:2152
  - - C:\Windows\SysWOW64\svchost.exe
      "C:\Windows\SysWOW64\svchost.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:3048
    - - C:\Windows\SysWOW64\cmd.exe
        
        /c del "C:\Users\Admin\AppData\Local\Temp\PO.exe"
        5⤵
        Deletes itself
        System Location Discovery: System Language Discovery
        
        PID:2684
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2888

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\nst79D3.tmp\k5ig8v1xqqd111h.dll

Filesize
5KB

MD5
fe9e8afe6e228256eaf3065c403d87bb

SHA1
1d46976328242b9e4f37d994bc1f169ee1f4c112

SHA256
e2b161127954eb1373158a95ef083d1b00198fef933e9ad5a1496d82d9006b8b

SHA512
573399e2885f89f05e27de783ef286c79dab04ca4e942f62ccbbb40d61fc7ab80baa97b13948b719dcae785d5daa19e4aa23adb4922e9737e0ecbfc2a09ba4a5

Download Submit
memory/1240-12-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/1240-13-0x0000000006AF0000-0x0000000006C57000-memory.dmp

Filesize
1.4MB

Download
memory/1240-16-0x0000000006980000-0x0000000006A5B000-memory.dmp

Filesize
876KB

Download
memory/1240-17-0x0000000006AF0000-0x0000000006C57000-memory.dmp

Filesize
1.4MB

Download
memory/1240-23-0x0000000006980000-0x0000000006A5B000-memory.dmp

Filesize
876KB

Download
memory/2128-8-0x0000000000300000-0x0000000000302000-memory.dmp

Filesize
8KB

Download
memory/2152-9-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2152-11-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2152-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3048-22-0x0000000000760000-0x0000000000768000-memory.dmp

Filesize
32KB

Download
memory/3048-21-0x0000000000760000-0x0000000000768000-memory.dmp

Filesize
32KB

Download