formbook | 9d4bfc8d1d35b095e4989c7a6a9a5eae41521eb64c751f9f13cff76ec0bcf1eb

General

Target

INCENTIVE.exe
Size

435KB
MD5

a8dd9be8f05730b0b3da0aa0524d4041
SHA1

585ce6f6c047ae07daf2754cdd9f011f8bb8343b
SHA256

d30c25033a8cd080bc76463ad1ef591f61b66b5bf36aae6557d9664714908614
SHA512

7a584d294a8702f03ee91f6047c08a9e1ed56742f1a1d19ff9a99778ea5b1270b44d67cf0450fd5e98b75df7d47208e6259efec3c486dfe39e1d5ccd62713dc1
SSDEEP

12288:UbLr/1vBE8A8gJ+7rWMtE2bbOu8Nsw+Qw7n/C8c:UTNRWw77tE23Ol+n/C8c

Score

10^/10

formbook n62s discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

n62s

Decoy

renabic.com

thesanaservice.xyz

lifemadegood.com

lovedowlin.com

dobro46.online

birotoafyon.com

haztol.xyz

917mainstreet.com

letshelpourselves.website

mysticalbloodmoon.com

legallyblondeattorney.com

metagoldenstate.com

ylhsklzjs.com

thejupitercraft.com

josephineclaimhelp.com

flowstorellc.com

eyeofthegate.com

asahi1500.com

ochumare.com

hieslerpark.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/2512-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2512-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1344-19-0x00000000000C0000-0x00000000000EF000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
2208	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
2100	INCENTIVE.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2100 set thread context of 2512	2100	INCENTIVE.exe	30
PID 2512 set thread context of 1216	2512	INCENTIVE.exe	21
PID 1344 set thread context of 1216	1344	NETSTAT.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 3 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	NETSTAT.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	INCENTIVE.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
1344	NETSTAT.EXE

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2512	INCENTIVE.exe
2512	INCENTIVE.exe
1344	NETSTAT.EXE
1344	NETSTAT.EXE
1344	NETSTAT.EXE
1344	NETSTAT.EXE
1344	NETSTAT.EXE
1344	NETSTAT.EXE
1344	NETSTAT.EXE
1344	NETSTAT.EXE
1344	NETSTAT.EXE
1344	NETSTAT.EXE
1344	NETSTAT.EXE
1344	NETSTAT.EXE
1344	NETSTAT.EXE
1344	NETSTAT.EXE
1344	NETSTAT.EXE
1344	NETSTAT.EXE
1344	NETSTAT.EXE
1344	NETSTAT.EXE
1344	NETSTAT.EXE
1344	NETSTAT.EXE
1344	NETSTAT.EXE
1344	NETSTAT.EXE
1344	NETSTAT.EXE
1344	NETSTAT.EXE
1344	NETSTAT.EXE
1344	NETSTAT.EXE
1344	NETSTAT.EXE
1344	NETSTAT.EXE
1344	NETSTAT.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2512	INCENTIVE.exe
2512	INCENTIVE.exe
2512	INCENTIVE.exe
1344	NETSTAT.EXE
1344	NETSTAT.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2512	INCENTIVE.exe
Token: SeDebugPrivilege	1344	NETSTAT.EXE

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 2512	2100	INCENTIVE.exe	30
PID 2100 wrote to memory of 2512	2100	INCENTIVE.exe	30
PID 2100 wrote to memory of 2512	2100	INCENTIVE.exe	30
PID 2100 wrote to memory of 2512	2100	INCENTIVE.exe	30
PID 2100 wrote to memory of 2512	2100	INCENTIVE.exe	30
PID 2100 wrote to memory of 2512	2100	INCENTIVE.exe	30
PID 2100 wrote to memory of 2512	2100	INCENTIVE.exe	30
PID 1216 wrote to memory of 1344	1216	Explorer.EXE	31
PID 1216 wrote to memory of 1344	1216	Explorer.EXE	31
PID 1216 wrote to memory of 1344	1216	Explorer.EXE	31
PID 1216 wrote to memory of 1344	1216	Explorer.EXE	31
PID 1344 wrote to memory of 2208	1344	NETSTAT.EXE	32
PID 1344 wrote to memory of 2208	1344	NETSTAT.EXE	32
PID 1344 wrote to memory of 2208	1344	NETSTAT.EXE	32
PID 1344 wrote to memory of 2208	1344	NETSTAT.EXE	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1216
- C:\Users\Admin\AppData\Local\Temp\INCENTIVE.exe
  "C:\Users\Admin\AppData\Local\Temp\INCENTIVE.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2100
- - C:\Users\Admin\AppData\Local\Temp\INCENTIVE.exe
    "C:\Users\Admin\AppData\Local\Temp\INCENTIVE.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2512
- C:\Windows\SysWOW64\NETSTAT.EXE
  "C:\Windows\SysWOW64\NETSTAT.EXE"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Gathers network information
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1344
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\INCENTIVE.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2208

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

2

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\nsyA767.tmp\wslelgm.dll

Filesize
303KB

MD5
7c38758347c69368b8bdff2f7a5ba99c

SHA1
70c318991c2515844ecc96714f5ad777d2e7e6a7

SHA256
fcb8bd3b27beffa5255fbc8b485b038b321043eecd77fc21cf4798446c21a971

SHA512
5d04876c8b1dd9a2d691d832471ad650ac85b95503c02aacde848f3b4f6f9f99c861b5a5f8e3e401145e6bbd78f59b8dddc8f24207a52d57afa3efe8940ecdac

Download Submit
memory/1216-14-0x0000000005030000-0x0000000005157000-memory.dmp

Filesize
1.2MB

Download
memory/1216-20-0x0000000005030000-0x0000000005157000-memory.dmp

Filesize
1.2MB

Download
memory/1344-17-0x0000000000980000-0x0000000000989000-memory.dmp

Filesize
36KB

Download
memory/1344-18-0x0000000000980000-0x0000000000989000-memory.dmp

Filesize
36KB

Download
memory/1344-19-0x00000000000C0000-0x00000000000EF000-memory.dmp

Filesize
188KB

Download
memory/2100-10-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/2512-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2512-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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