formbook | fdb292d797f2e82375becab7d1e33d1d5f2b51ea00b133565ebfc2e8d7c7cf76

Analysis

max time kernel
147s
max time network
18s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 07:18

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General

Target

Copia de transferencia bancaria.exe
Size

971KB
MD5

8ee464229bdaac78e1354a7ff334af85
SHA1

a566511090198f92b82e07c1675b256f6c91e923
SHA256

8095979c4153bbcced38a6ee12589fbb67f356535a91cf22e26413ee3f1c4e34
SHA512

836274df2b83188718400c22b71becbf445d2f128cdfbc342cb62cb3655cc70441a638705911c449f500748e7be13082a11ac4d261a03e9c805cdf10e3e1ab87
SSDEEP

12288:Ntcg0r9tDZddpnLnv2hVSKRytHxnrceHMcrIaPy1FTAUI4kSxv1/:Nt893hSh0K0pxVIaPy1FW41

Score

10^/10

formbook de19 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

de19

Decoy

predictivemedicine.life

coloringforthepeople.com

project154.com

usmmexchange.com

bootzxon.com

chaoge730.com

thenaci.com

moviestarplent.com

musicallyengaged.com

sneakerspark.net

yudist.com

apqrcx.xyz

traceless.tel

guardlanavionics.com

usadogrights.com

openei.club

aventusluxury.com

telewebin.com

godrej-threeparks.net

solbysol.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Formbook family
formbook

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral1/memory/2796-21-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2912-28-0x0000000000110000-0x000000000013F000-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
2836	powershell.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2248 set thread context of 2796	2248	Copia de transferencia bancaria.exe	33
PID 2796 set thread context of 1220	2796	RegSvcs.exe	21
PID 2912 set thread context of 1220	2912	msiexec.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 5 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	Copia de transferencia bancaria.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2460	schtasks.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
2796	RegSvcs.exe
2796	RegSvcs.exe
2836	powershell.exe
2912	msiexec.exe
2912	msiexec.exe
2912	msiexec.exe
2912	msiexec.exe
2912	msiexec.exe
2912	msiexec.exe
2912	msiexec.exe
2912	msiexec.exe
2912	msiexec.exe
2912	msiexec.exe
2912	msiexec.exe
2912	msiexec.exe
2912	msiexec.exe
2912	msiexec.exe
2912	msiexec.exe
2912	msiexec.exe
2912	msiexec.exe
2912	msiexec.exe
2912	msiexec.exe
2912	msiexec.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2796	RegSvcs.exe
2796	RegSvcs.exe
2796	RegSvcs.exe
2912	msiexec.exe
2912	msiexec.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2796	RegSvcs.exe
Token: SeDebugPrivilege	2836	powershell.exe
Token: SeDebugPrivilege	2912	msiexec.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 2248 wrote to memory of 2836	2248	Copia de transferencia bancaria.exe	29
PID 2248 wrote to memory of 2836	2248	Copia de transferencia bancaria.exe	29
PID 2248 wrote to memory of 2836	2248	Copia de transferencia bancaria.exe	29
PID 2248 wrote to memory of 2836	2248	Copia de transferencia bancaria.exe	29
PID 2248 wrote to memory of 2460	2248	Copia de transferencia bancaria.exe	31
PID 2248 wrote to memory of 2460	2248	Copia de transferencia bancaria.exe	31
PID 2248 wrote to memory of 2460	2248	Copia de transferencia bancaria.exe	31
PID 2248 wrote to memory of 2460	2248	Copia de transferencia bancaria.exe	31
PID 2248 wrote to memory of 2796	2248	Copia de transferencia bancaria.exe	33
PID 2248 wrote to memory of 2796	2248	Copia de transferencia bancaria.exe	33
PID 2248 wrote to memory of 2796	2248	Copia de transferencia bancaria.exe	33
PID 2248 wrote to memory of 2796	2248	Copia de transferencia bancaria.exe	33
PID 2248 wrote to memory of 2796	2248	Copia de transferencia bancaria.exe	33
PID 2248 wrote to memory of 2796	2248	Copia de transferencia bancaria.exe	33
PID 2248 wrote to memory of 2796	2248	Copia de transferencia bancaria.exe	33
PID 2248 wrote to memory of 2796	2248	Copia de transferencia bancaria.exe	33
PID 2248 wrote to memory of 2796	2248	Copia de transferencia bancaria.exe	33
PID 2248 wrote to memory of 2796	2248	Copia de transferencia bancaria.exe	33
PID 1220 wrote to memory of 2912	1220	Explorer.EXE	34
PID 1220 wrote to memory of 2912	1220	Explorer.EXE	34
PID 1220 wrote to memory of 2912	1220	Explorer.EXE	34
PID 1220 wrote to memory of 2912	1220	Explorer.EXE	34
PID 1220 wrote to memory of 2912	1220	Explorer.EXE	34
PID 1220 wrote to memory of 2912	1220	Explorer.EXE	34
PID 1220 wrote to memory of 2912	1220	Explorer.EXE	34
PID 2912 wrote to memory of 1696	2912	msiexec.exe	35
PID 2912 wrote to memory of 1696	2912	msiexec.exe	35
PID 2912 wrote to memory of 1696	2912	msiexec.exe	35
PID 2912 wrote to memory of 1696	2912	msiexec.exe	35

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1220
- C:\Users\Admin\AppData\Local\Temp\Copia de transferencia bancaria.exe
  "C:\Users\Admin\AppData\Local\Temp\Copia de transferencia bancaria.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2248
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\inKcSqSKZsI.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2836
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\inKcSqSKZsI" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6B7F.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2460
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2796
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.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:2912
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1696

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp6B7F.tmp

Filesize
1KB

MD5
aa794ad0879d91fdf131ad92d0f68bcc

SHA1
79d816370f9d45846a83b3bb29bc9d2258516b48

SHA256
8330df5cec2598e53e1abcaeb56fe2dfe0dcda77bc4a667daa1c342ff3294302

SHA512
ce2dc4a1f20cd42504ec1f35ec42cebbb578d34ccb2f12bc131951e7eed398d1ac47bd628d6c7f933eee4fe63b80823c2f6626cb2333337b21c77bf682d8658b

Download Submit
memory/2248-4-0x0000000074EBE000-0x0000000074EBF000-memory.dmp

Filesize
4KB

Download
memory/2248-5-0x0000000074EB0000-0x000000007559E000-memory.dmp

Filesize
6.9MB

Download
memory/2248-13-0x0000000007D20000-0x0000000007D8C000-memory.dmp

Filesize
432KB

Download
memory/2248-3-0x0000000000460000-0x0000000000474000-memory.dmp

Filesize
80KB

Download
memory/2248-22-0x0000000074EB0000-0x000000007559E000-memory.dmp

Filesize
6.9MB

Download
memory/2248-6-0x0000000000480000-0x000000000048C000-memory.dmp

Filesize
48KB

Download
memory/2248-7-0x0000000005320000-0x00000000053E4000-memory.dmp

Filesize
784KB

Download
memory/2248-2-0x0000000074EB0000-0x000000007559E000-memory.dmp

Filesize
6.9MB

Download
memory/2248-0-0x0000000074EBE000-0x0000000074EBF000-memory.dmp

Filesize
4KB

Download
memory/2248-1-0x00000000011D0000-0x00000000012CA000-memory.dmp

Filesize
1000KB

Download
memory/2796-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2796-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2796-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2796-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2912-25-0x00000000002F0000-0x0000000000304000-memory.dmp

Filesize
80KB

Download
memory/2912-27-0x00000000002F0000-0x0000000000304000-memory.dmp

Filesize
80KB

Download
memory/2912-28-0x0000000000110000-0x000000000013F000-memory.dmp

Filesize
188KB

Download