formbook | 94f858ec5529f4f52ae1bed542d9a38b2ab7e4be0446c4d9252f0de3d7cf2dce

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/2692-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2692-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2696-21-0x00000000000C0000-0x00000000000EF000-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
2700	powershell.exe

Deletes itself 1 IoCs

pid	Process
1504	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2084 set thread context of 2692	2084	e-dekont.exe	32
PID 2692 set thread context of 1196	2692	e-dekont.exe	21
PID 2696 set thread context of 1196	2696	NAPSTAT.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	e-dekont.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NAPSTAT.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 30 IoCs

pid	Process
2084	e-dekont.exe
2084	e-dekont.exe
2692	e-dekont.exe
2692	e-dekont.exe
2700	powershell.exe
2696	NAPSTAT.EXE
2696	NAPSTAT.EXE
2696	NAPSTAT.EXE
2696	NAPSTAT.EXE
2696	NAPSTAT.EXE
2696	NAPSTAT.EXE
2696	NAPSTAT.EXE
2696	NAPSTAT.EXE
2696	NAPSTAT.EXE
2696	NAPSTAT.EXE
2696	NAPSTAT.EXE
2696	NAPSTAT.EXE
2696	NAPSTAT.EXE
2696	NAPSTAT.EXE
2696	NAPSTAT.EXE
2696	NAPSTAT.EXE
2696	NAPSTAT.EXE
2696	NAPSTAT.EXE
2696	NAPSTAT.EXE
2696	NAPSTAT.EXE
2696	NAPSTAT.EXE
2696	NAPSTAT.EXE
2696	NAPSTAT.EXE
2696	NAPSTAT.EXE
2696	NAPSTAT.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2692	e-dekont.exe
2692	e-dekont.exe
2692	e-dekont.exe
2696	NAPSTAT.EXE
2696	NAPSTAT.EXE

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2084	e-dekont.exe
Token: SeDebugPrivilege	2692	e-dekont.exe
Token: SeDebugPrivilege	2700	powershell.exe
Token: SeDebugPrivilege	2696	NAPSTAT.EXE

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2084 wrote to memory of 2700	2084	e-dekont.exe	30
PID 2084 wrote to memory of 2700	2084	e-dekont.exe	30
PID 2084 wrote to memory of 2700	2084	e-dekont.exe	30
PID 2084 wrote to memory of 2700	2084	e-dekont.exe	30
PID 2084 wrote to memory of 2996	2084	e-dekont.exe	31
PID 2084 wrote to memory of 2996	2084	e-dekont.exe	31
PID 2084 wrote to memory of 2996	2084	e-dekont.exe	31
PID 2084 wrote to memory of 2996	2084	e-dekont.exe	31
PID 2084 wrote to memory of 2692	2084	e-dekont.exe	32
PID 2084 wrote to memory of 2692	2084	e-dekont.exe	32
PID 2084 wrote to memory of 2692	2084	e-dekont.exe	32
PID 2084 wrote to memory of 2692	2084	e-dekont.exe	32
PID 2084 wrote to memory of 2692	2084	e-dekont.exe	32
PID 2084 wrote to memory of 2692	2084	e-dekont.exe	32
PID 2084 wrote to memory of 2692	2084	e-dekont.exe	32
PID 1196 wrote to memory of 2696	1196	Explorer.EXE	34
PID 1196 wrote to memory of 2696	1196	Explorer.EXE	34
PID 1196 wrote to memory of 2696	1196	Explorer.EXE	34
PID 1196 wrote to memory of 2696	1196	Explorer.EXE	34
PID 2696 wrote to memory of 1504	2696	NAPSTAT.EXE	35
PID 2696 wrote to memory of 1504	2696	NAPSTAT.EXE	35
PID 2696 wrote to memory of 1504	2696	NAPSTAT.EXE	35
PID 2696 wrote to memory of 1504	2696	NAPSTAT.EXE	35

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1196
- 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 behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2084
- - 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:2700
- - C:\Users\Admin\AppData\Local\Temp\e-dekont.exe
    "C:\Users\Admin\AppData\Local\Temp\e-dekont.exe"
    3⤵
    PID:2996
- - 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:2692
- C:\Windows\SysWOW64\NAPSTAT.EXE
  "C:\Windows\SysWOW64\NAPSTAT.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:2696
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\e-dekont.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:1504

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/1196-23-0x00000000051E0000-0x00000000052FB000-memory.dmp

Filesize
1.1MB

Download
memory/1196-17-0x00000000051E0000-0x00000000052FB000-memory.dmp

Filesize
1.1MB

Download
memory/2084-12-0x0000000074C50000-0x000000007533E000-memory.dmp

Filesize
6.9MB

Download
memory/2084-1-0x0000000000080000-0x0000000000140000-memory.dmp

Filesize
768KB

Download
memory/2084-2-0x0000000074C50000-0x000000007533E000-memory.dmp

Filesize
6.9MB

Download
memory/2084-3-0x0000000074C5E000-0x0000000074C5F000-memory.dmp

Filesize
4KB

Download
memory/2084-4-0x0000000074C50000-0x000000007533E000-memory.dmp

Filesize
6.9MB

Download
memory/2084-5-0x0000000000680000-0x000000000069C000-memory.dmp

Filesize
112KB

Download
memory/2084-6-0x00000000005E0000-0x0000000000656000-memory.dmp

Filesize
472KB

Download
memory/2084-0-0x0000000074C5E000-0x0000000074C5F000-memory.dmp

Filesize
4KB

Download
memory/2692-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2692-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2692-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2692-15-0x00000000001E0000-0x00000000001F4000-memory.dmp

Filesize
80KB

Download
memory/2692-14-0x0000000000850000-0x0000000000B53000-memory.dmp

Filesize
3.0MB

Download
memory/2692-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2692-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2696-20-0x0000000000DC0000-0x0000000000E06000-memory.dmp

Filesize
280KB

Download
memory/2696-21-0x00000000000C0000-0x00000000000EF000-memory.dmp

Filesize
188KB

Download

Analysis

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