formbook | 829bc2efd2477bb2786768e62c9ce63531bad7f40db8d8f311c9312d9d9fe757

General

Target

e-dekont.exe
Size

739KB
MD5

d81b47b60f4ab72d26d70eed50f4b72a
SHA1

16b85b52a3db23ad7f7e297b3d270ed5100f34c7
SHA256

94f858ec5529f4f52ae1bed542d9a38b2ab7e4be0446c4d9252f0de3d7cf2dce
SHA512

8b1480c5ec7f7fd3ee8cbfbb0f446e244b41a08d4568c0fc17894ddc314252a83bedc50ebe815429e737201653273c641becd75416569b999ac1226a937ca996
SSDEEP

12288:AgWVyEsrM2W0RPDGFbSSSAn+MHkTn4PVwD+iEmNg1B/dEmbGqpJ:9WVyEmMH0qkA+MHY4GDZE11RSmNpJ

Score

10^/10

formbook bc01 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

bc01

Decoy

epatitis-treatment-26155.bond

52cy67sk.bond

nline-degree-6987776.world

ingxingdiandeng-2033.top

mberbreeze.cyou

48xc300mw.autos

obs-for-seniors-39582.bond

tpetersburg-3-tonn.online

egafon-parser.online

172jh.shop

ltraman.pro

bqfhnys.shop

ntercash24-cad.homes

uhtwister.cloud

alk-in-tubs-27353.bond

ucas-saaad.buzz

oko.events

8080713.xyz

refabricated-homes-74404.bond

inaa.boo

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/2988-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2988-17-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2988-23-0x0000000000400000-0x000000000042F000-memory.dmp	formbook

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2136	powershell.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1384 set thread context of 2988	1384	e-dekont.exe	33
PID 2988 set thread context of 1200	2988	e-dekont.exe	21
PID 2988 set thread context of 1200	2988	e-dekont.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 2 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	e-dekont.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2988	e-dekont.exe
2988	e-dekont.exe
2136	powershell.exe
2988	e-dekont.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2988	e-dekont.exe
2988	e-dekont.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2988	e-dekont.exe
Token: SeDebugPrivilege	2136	powershell.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1384 wrote to memory of 2136	1384	e-dekont.exe	31
PID 1384 wrote to memory of 2136	1384	e-dekont.exe	31
PID 1384 wrote to memory of 2136	1384	e-dekont.exe	31
PID 1384 wrote to memory of 2136	1384	e-dekont.exe	31
PID 1384 wrote to memory of 2988	1384	e-dekont.exe	33
PID 1384 wrote to memory of 2988	1384	e-dekont.exe	33
PID 1384 wrote to memory of 2988	1384	e-dekont.exe	33
PID 1384 wrote to memory of 2988	1384	e-dekont.exe	33
PID 1384 wrote to memory of 2988	1384	e-dekont.exe	33
PID 1384 wrote to memory of 2988	1384	e-dekont.exe	33
PID 1384 wrote to memory of 2988	1384	e-dekont.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1200
- C:\Users\Admin\AppData\Local\Temp\e-dekont.exe
  "C:\Users\Admin\AppData\Local\Temp\e-dekont.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1384
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\e-dekont.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2136
- - C:\Users\Admin\AppData\Local\Temp\e-dekont.exe
    "C:\Users\Admin\AppData\Local\Temp\e-dekont.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2988

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

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

Replay Monitor

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Downloads

memory/1200-24-0x00000000069D0000-0x0000000006B20000-memory.dmp

Filesize
1.3MB

Download
memory/1200-21-0x00000000069D0000-0x0000000006B20000-memory.dmp

Filesize
1.3MB

Download
memory/1384-14-0x0000000074B20000-0x000000007520E000-memory.dmp

Filesize
6.9MB

Download
memory/1384-1-0x0000000000110000-0x00000000001D0000-memory.dmp

Filesize
768KB

Download
memory/1384-2-0x0000000074B20000-0x000000007520E000-memory.dmp

Filesize
6.9MB

Download
memory/1384-3-0x0000000074B2E000-0x0000000074B2F000-memory.dmp

Filesize
4KB

Download
memory/1384-4-0x0000000074B20000-0x000000007520E000-memory.dmp

Filesize
6.9MB

Download
memory/1384-5-0x00000000006C0000-0x00000000006DC000-memory.dmp

Filesize
112KB

Download
memory/1384-6-0x0000000000A60000-0x0000000000AD6000-memory.dmp

Filesize
472KB

Download
memory/1384-0-0x0000000074B2E000-0x0000000074B2F000-memory.dmp

Filesize
4KB

Download
memory/2988-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2988-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2988-15-0x0000000000AC0000-0x0000000000DC3000-memory.dmp

Filesize
3.0MB

Download
memory/2988-18-0x0000000000200000-0x0000000000214000-memory.dmp

Filesize
80KB

Download
memory/2988-17-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2988-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2988-23-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2988-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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