formbook | 829bc2efd2477bb2786768e62c9ce63531bad7f40db8d8f311c9312d9d9fe757

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07/11/2024, 14:59

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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
behavioral2/memory/4516-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4516-17-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2368-70-0x0000000000B90000-0x0000000000BBF000-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
4564	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	e-dekont.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2220 set thread context of 4516	2220	e-dekont.exe	103
PID 4516 set thread context of 3480	4516	e-dekont.exe	54
PID 2368 set thread context of 3480	2368	chkdsk.exe	54

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

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 56 IoCs

pid	Process
2220	e-dekont.exe
2220	e-dekont.exe
2220	e-dekont.exe
2220	e-dekont.exe
4516	e-dekont.exe
4516	e-dekont.exe
4516	e-dekont.exe
4516	e-dekont.exe
4564	powershell.exe
4564	powershell.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe
2368	chkdsk.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4516	e-dekont.exe
4516	e-dekont.exe
4516	e-dekont.exe
2368	chkdsk.exe
2368	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2220	e-dekont.exe
Token: SeDebugPrivilege	4516	e-dekont.exe
Token: SeDebugPrivilege	4564	powershell.exe
Token: SeDebugPrivilege	2368	chkdsk.exe
Token: SeShutdownPrivilege	3480	Explorer.EXE
Token: SeCreatePagefilePrivilege	3480	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3480	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 4564	2220	e-dekont.exe	99
PID 2220 wrote to memory of 4564	2220	e-dekont.exe	99
PID 2220 wrote to memory of 4564	2220	e-dekont.exe	99
PID 2220 wrote to memory of 1500	2220	e-dekont.exe	100
PID 2220 wrote to memory of 1500	2220	e-dekont.exe	100
PID 2220 wrote to memory of 1500	2220	e-dekont.exe	100
PID 2220 wrote to memory of 2940	2220	e-dekont.exe	102
PID 2220 wrote to memory of 2940	2220	e-dekont.exe	102
PID 2220 wrote to memory of 2940	2220	e-dekont.exe	102
PID 2220 wrote to memory of 4516	2220	e-dekont.exe	103
PID 2220 wrote to memory of 4516	2220	e-dekont.exe	103
PID 2220 wrote to memory of 4516	2220	e-dekont.exe	103
PID 2220 wrote to memory of 4516	2220	e-dekont.exe	103
PID 2220 wrote to memory of 4516	2220	e-dekont.exe	103
PID 2220 wrote to memory of 4516	2220	e-dekont.exe	103
PID 3480 wrote to memory of 2368	3480	Explorer.EXE	105
PID 3480 wrote to memory of 2368	3480	Explorer.EXE	105
PID 3480 wrote to memory of 2368	3480	Explorer.EXE	105
PID 2368 wrote to memory of 2720	2368	chkdsk.exe	106
PID 2368 wrote to memory of 2720	2368	chkdsk.exe	106
PID 2368 wrote to memory of 2720	2368	chkdsk.exe	106

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3480
- C:\Users\Admin\AppData\Local\Temp\e-dekont.exe
  "C:\Users\Admin\AppData\Local\Temp\e-dekont.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2220
- - 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:4564
- - C:\Users\Admin\AppData\Local\Temp\e-dekont.exe
    "C:\Users\Admin\AppData\Local\Temp\e-dekont.exe"
    3⤵
    PID:1500
- - C:\Users\Admin\AppData\Local\Temp\e-dekont.exe
    "C:\Users\Admin\AppData\Local\Temp\e-dekont.exe"
    3⤵
    PID:2940
- - 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:4516
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1148
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2368
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\e-dekont.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2720

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_v10j4ovo.bwv.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2220-10-0x000000000D3B0000-0x000000000D44C000-memory.dmp

Filesize
624KB

Download
memory/2220-13-0x0000000074500000-0x0000000074CB0000-memory.dmp

Filesize
7.7MB

Download
memory/2220-3-0x0000000005070000-0x0000000005102000-memory.dmp

Filesize
584KB

Download
memory/2220-4-0x0000000074500000-0x0000000074CB0000-memory.dmp

Filesize
7.7MB

Download
memory/2220-5-0x0000000005000000-0x000000000500A000-memory.dmp

Filesize
40KB

Download
memory/2220-6-0x000000007450E000-0x000000007450F000-memory.dmp

Filesize
4KB

Download
memory/2220-7-0x0000000074500000-0x0000000074CB0000-memory.dmp

Filesize
7.7MB

Download
memory/2220-8-0x0000000005390000-0x00000000053AC000-memory.dmp

Filesize
112KB

Download
memory/2220-9-0x00000000029E0000-0x0000000002A56000-memory.dmp

Filesize
472KB

Download
memory/2220-1-0x0000000000550000-0x0000000000610000-memory.dmp

Filesize
768KB

Download
memory/2220-2-0x0000000005620000-0x0000000005BC4000-memory.dmp

Filesize
5.6MB

Download
memory/2220-0-0x000000007450E000-0x000000007450F000-memory.dmp

Filesize
4KB

Download
memory/2368-70-0x0000000000B90000-0x0000000000BBF000-memory.dmp

Filesize
188KB

Download
memory/2368-61-0x00000000001E0000-0x00000000001EA000-memory.dmp

Filesize
40KB

Download
memory/2368-60-0x00000000001E0000-0x00000000001EA000-memory.dmp

Filesize
40KB

Download
memory/3480-74-0x00000000031E0000-0x00000000032AB000-memory.dmp

Filesize
812KB

Download
memory/3480-22-0x0000000008F10000-0x0000000009053000-memory.dmp

Filesize
1.3MB

Download
memory/3480-69-0x0000000008F10000-0x0000000009053000-memory.dmp

Filesize
1.3MB

Download
memory/4516-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4516-17-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4516-18-0x0000000000DD0000-0x0000000000DE4000-memory.dmp

Filesize
80KB

Download
memory/4516-14-0x0000000000E90000-0x00000000011DA000-memory.dmp

Filesize
3.3MB

Download
memory/4564-26-0x0000000006260000-0x00000000062C6000-memory.dmp

Filesize
408KB

Download
memory/4564-55-0x0000000008220000-0x000000000889A000-memory.dmp

Filesize
6.5MB

Download
memory/4564-25-0x0000000005A10000-0x0000000005A76000-memory.dmp

Filesize
408KB

Download
memory/4564-36-0x00000000062D0000-0x0000000006624000-memory.dmp

Filesize
3.3MB

Download
memory/4564-37-0x00000000068B0000-0x00000000068CE000-memory.dmp

Filesize
120KB

Download
memory/4564-38-0x00000000068F0000-0x000000000693C000-memory.dmp

Filesize
304KB

Download
memory/4564-39-0x000000007F3C0000-0x000000007F3D0000-memory.dmp

Filesize
64KB

Download
memory/4564-40-0x0000000006E80000-0x0000000006EB2000-memory.dmp

Filesize
200KB

Download
memory/4564-41-0x00000000703A0000-0x00000000703EC000-memory.dmp

Filesize
304KB

Download
memory/4564-51-0x0000000005480000-0x0000000005490000-memory.dmp

Filesize
64KB

Download
memory/4564-52-0x0000000005480000-0x0000000005490000-memory.dmp

Filesize
64KB

Download
memory/4564-53-0x0000000007890000-0x00000000078AE000-memory.dmp

Filesize
120KB

Download
memory/4564-54-0x0000000007AB0000-0x0000000007B53000-memory.dmp

Filesize
652KB

Download
memory/4564-24-0x00000000057F0000-0x0000000005812000-memory.dmp

Filesize
136KB

Download
memory/4564-56-0x0000000007BE0000-0x0000000007BFA000-memory.dmp

Filesize
104KB

Download
memory/4564-57-0x0000000007C50000-0x0000000007C5A000-memory.dmp

Filesize
40KB

Download
memory/4564-58-0x0000000007E60000-0x0000000007EF6000-memory.dmp

Filesize
600KB

Download
memory/4564-59-0x0000000007DE0000-0x0000000007DF1000-memory.dmp

Filesize
68KB

Download
memory/4564-16-0x0000000005320000-0x0000000005356000-memory.dmp

Filesize
216KB

Download
memory/4564-20-0x0000000074580000-0x0000000074D30000-memory.dmp

Filesize
7.7MB

Download
memory/4564-62-0x0000000007E10000-0x0000000007E1E000-memory.dmp

Filesize
56KB

Download
memory/4564-63-0x0000000007E20000-0x0000000007E34000-memory.dmp

Filesize
80KB

Download
memory/4564-64-0x0000000007F20000-0x0000000007F3A000-memory.dmp

Filesize
104KB

Download
memory/4564-65-0x0000000007F00000-0x0000000007F08000-memory.dmp

Filesize
32KB

Download
memory/4564-68-0x0000000074580000-0x0000000074D30000-memory.dmp

Filesize
7.7MB

Download
memory/4564-21-0x0000000005AC0000-0x00000000060E8000-memory.dmp

Filesize
6.2MB

Download
memory/4564-23-0x0000000005480000-0x0000000005490000-memory.dmp

Filesize
64KB

Download
memory/4564-19-0x000000007458E000-0x000000007458F000-memory.dmp

Filesize
4KB

Download