formbook | fc4f0b453831ce61ce9b085d937469756ea43c5374f688bcc9e64c2fa7d6ecd7

General

Target

rock455321.exe
Size

333KB
MD5

8684d70db70df0b6b307ea7d7cdaf7db
SHA1

6bf38ec565189fd303275b7bc3c4770396c29f29
SHA256

0479e653d2603f09b71afd0f2a7388c3af722643a49ac94541116dd6add60b2c
SHA512

8bf5649fdf5ee3623f66a4cd46a001e07f77ef4e2b4232159cadf3d8c63e0bdec216c62219597b909f07d357d75bd994147c212f365389169a077b955550203a
SSDEEP

6144:TxDb5vv/1m3QxOve1lmR4BEfrv2SoFJli1S1tXiplUXP0a9:03OO+YRYETv2SsDvvSpmx9

Score

10^/10

formbook r1e3 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

r1e3

Decoy

floorwaves.com

leshigou.top

2y3jq.com

karobazaar.com

cookdd9.com

xn--9kqu10bhqv.top

hollieforson.com

peachso.com

gerberry.info

abslikepro.com

lesourire-official.com

dfhgxi.icu

lightofcg.com

hismozart.com

nieuwemaniervanleven.com

trimble-gs-112-cable-reel.com

putacandleinit.com

gopenly.xyz

northcountyneuropsychology.com

thekittyherbalist.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/2556-14-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2556-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2496-22-0x0000000000070000-0x000000000009F000-memory.dmp	formbook

Executes dropped EXE 2 IoCs

pid	Process
2992	wiwve.exe
2556	wiwve.exe

Loads dropped DLL 2 IoCs

pid	Process
2508	rock455321.exe
2992	wiwve.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2992 set thread context of 2556	2992	wiwve.exe	31
PID 2556 set thread context of 1192	2556	wiwve.exe	21
PID 2496 set thread context of 1192	2496	wscript.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rock455321.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wiwve.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wscript.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2556	wiwve.exe
2556	wiwve.exe
2496	wscript.exe
2496	wscript.exe
2496	wscript.exe
2496	wscript.exe
2496	wscript.exe
2496	wscript.exe
2496	wscript.exe
2496	wscript.exe
2496	wscript.exe
2496	wscript.exe
2496	wscript.exe
2496	wscript.exe
2496	wscript.exe
2496	wscript.exe
2496	wscript.exe
2496	wscript.exe
2496	wscript.exe
2496	wscript.exe
2496	wscript.exe
2496	wscript.exe
2496	wscript.exe
2496	wscript.exe
2496	wscript.exe
2496	wscript.exe
2496	wscript.exe
2496	wscript.exe
2496	wscript.exe
2496	wscript.exe
2496	wscript.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2556	wiwve.exe
2556	wiwve.exe
2556	wiwve.exe
2496	wscript.exe
2496	wscript.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2556	wiwve.exe
Token: SeDebugPrivilege	2496	wscript.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2508 wrote to memory of 2992	2508	rock455321.exe	30
PID 2508 wrote to memory of 2992	2508	rock455321.exe	30
PID 2508 wrote to memory of 2992	2508	rock455321.exe	30
PID 2508 wrote to memory of 2992	2508	rock455321.exe	30
PID 2992 wrote to memory of 2556	2992	wiwve.exe	31
PID 2992 wrote to memory of 2556	2992	wiwve.exe	31
PID 2992 wrote to memory of 2556	2992	wiwve.exe	31
PID 2992 wrote to memory of 2556	2992	wiwve.exe	31
PID 2992 wrote to memory of 2556	2992	wiwve.exe	31
PID 2992 wrote to memory of 2556	2992	wiwve.exe	31
PID 2992 wrote to memory of 2556	2992	wiwve.exe	31
PID 1192 wrote to memory of 2496	1192	Explorer.EXE	32
PID 1192 wrote to memory of 2496	1192	Explorer.EXE	32
PID 1192 wrote to memory of 2496	1192	Explorer.EXE	32
PID 1192 wrote to memory of 2496	1192	Explorer.EXE	32
PID 2496 wrote to memory of 2684	2496	wscript.exe	33
PID 2496 wrote to memory of 2684	2496	wscript.exe	33
PID 2496 wrote to memory of 2684	2496	wscript.exe	33
PID 2496 wrote to memory of 2684	2496	wscript.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1192
- C:\Users\Admin\AppData\Local\Temp\rock455321.exe
  "C:\Users\Admin\AppData\Local\Temp\rock455321.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2508
- - C:\Users\Admin\AppData\Local\Temp\wiwve.exe
    C:\Users\Admin\AppData\Local\Temp\wiwve.exe C:\Users\Admin\AppData\Local\Temp\hldlbugxq
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2992
  - - C:\Users\Admin\AppData\Local\Temp\wiwve.exe
      C:\Users\Admin\AppData\Local\Temp\wiwve.exe C:\Users\Admin\AppData\Local\Temp\hldlbugxq
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:2556
- 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:2496
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\wiwve.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2684

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\0dqf5giar64yom

Filesize
211KB

MD5
590b26017a9bbe9ef834d288f9429229

SHA1
b81f357dcdf39081bbbd57175201b6df2b3cb865

SHA256
7ed1f17cc357ce0a716d9ae3a290c2c6fe697af2ba3793a429334c8d36556fa5

SHA512
b5ee39a09653bf873add627349a50b8c0913ccd34d36297ff40fd567c35a1e0ebf2efef9d01bdc520b0b7d4c108e28f3c695956d9d8388b8ae5a37cfa082c143

Download Submit
C:\Users\Admin\AppData\Local\Temp\hldlbugxq

Filesize
4KB

MD5
9b731bf05c900fcb59edbe09acb0d826

SHA1
ead267da13e71a51e752ff53bb95ef8cabf6bbf3

SHA256
e212e509792102795ba48dd7ba93f2c000365ad77c8056cccb23ce0ceb9360ef

SHA512
f854504fa9af02d201869dc8678051c73254d8f481c9f49a9cfbea22816764bceb8810b6e8439dded87972b1b7058cb3e9e820c12d681b3dc56cafdd3755506d

Download Submit
C:\Users\Admin\AppData\Local\Temp\wiwve.exe

Filesize
222KB

MD5
c8da642b7d1d6af209da1815cfabb8ef

SHA1
abf77fa46cd99db90601f2b1b9d351bca76d1fcb

SHA256
5d1e158dc8e0168cdf718ca396a9cf158da04155266190fdc461db3b4ff91daf

SHA512
5d6cafb172568f2542f4c09bffc1608245436a5a7698131c37c9ae8175477709390516197e6302cb036cf39a0d7c456e1236604581b4e468bcf06e90ceff8a97

Download Submit
memory/1192-17-0x0000000004FA0000-0x00000000050D6000-memory.dmp

Filesize
1.2MB

Download
memory/1192-23-0x0000000004FA0000-0x00000000050D6000-memory.dmp

Filesize
1.2MB

Download
memory/2496-21-0x0000000000490000-0x00000000004B6000-memory.dmp

Filesize
152KB

Download
memory/2496-20-0x0000000000490000-0x00000000004B6000-memory.dmp

Filesize
152KB

Download
memory/2496-22-0x0000000000070000-0x000000000009F000-memory.dmp

Filesize
188KB

Download
memory/2556-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2556-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2992-8-0x0000000000230000-0x0000000000232000-memory.dmp

Filesize
8KB

Download

Analysis

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