formbook | c4215902948729d99513b7969979667aca3d05d45300989448b52769163c990b

General

Target

2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe
Size

699KB
MD5

fbf01e7b1520736595417ae322402ecf
SHA1

235a8c1bc504e09dc7a0d48382d45392076dada0
SHA256

c4215902948729d99513b7969979667aca3d05d45300989448b52769163c990b
SHA512

ad2d158e3c133fdb9452c753513ad7f0b2daf7fca930f55108ade37d21ab37f8d5fba31e4b7efbd4c476f504efb3a5b3ce4686cb268dc0103471deb85de4d840
SSDEEP

12288:FMzQsCZBCotU1/Em1fo2vvOTbD9ZRPHc7iNkkcJLXjpZ+KdAAkkR:FbdUEefnvsDLpcGcJLTSYAm

Score

10^/10

formbook dd20 execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

dd20

Decoy

unblurd.com

docu-zign.com

randijpaulsen.com

angsabet.com

sedatelynx.com

opiumcore.store

thelordismysaviormerch.com

mindstudio.support

waterbygraceteam.com

furnitureinspiredbythesea.com

amablanca.com

hespelerdental.com

arcalid.net

balajinursingbureau.online

caixias.shop

solingen-buergerstiftung.com

194916.top

6travel-insurance.xyz

xn--fiqp9b17y.xn--czr694b

syntixi.trade

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Detects executables packed with SmartAssembly 1 IoCs

Processes:

resource yara_rule

behavioral1/memory/2868-6-0x0000000000570000-0x000000000057C000-memory.dmp INDICATOR_EXE_Packed_SmartAssembly
Formbook payload 2 IoCs
rat

Processes:

resource yara_rule

behavioral1/memory/2396-25-0x0000000000400000-0x000000000042F000-memory.dmp formbook
behavioral1/memory/2772-30-0x0000000000080000-0x00000000000AF000-memory.dmp formbook
Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
execution

PowerShell
T1059.001

Processes:

powershell.exepowershell.exe

pid process

2548 powershell.exe
2604 powershell.exe
2604 powershell.exe

resource	yara_rule
behavioral1/memory/2868-6-0x0000000000570000-0x000000000057C000-memory.dmp	INDICATOR_EXE_Packed_SmartAssembly

resource	yara_rule
behavioral1/memory/2396-25-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2772-30-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

pid	process
2548	powershell.exe
2604	powershell.exe
2604	powershell.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exeRegSvcs.exeNETSTAT.EXE

description	pid	process	target process
PID 2868 set thread context of 2396	2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe	RegSvcs.exe
PID 2396 set thread context of 1084	2396	RegSvcs.exe	Explorer.EXE
PID 2772 set thread context of 1084	2772	NETSTAT.EXE	Explorer.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.

System Information Discovery
T1082

Command and Scripting Interpreter
T1059

Processes:

NETSTAT.EXE

pid process

2772 NETSTAT.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

Processes:

schtasks.exe

pid process

2680 schtasks.exe

pid	process
2772	NETSTAT.EXE

pid	process
2680	schtasks.exe

Suspicious behavior: EnumeratesProcesses 35 IoCs

Processes:

2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exepowershell.exepowershell.exeRegSvcs.exeNETSTAT.EXE

pid	process
2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe
2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe
2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe
2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe
2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe
2604	powershell.exe
2548	powershell.exe
2396	RegSvcs.exe
2396	RegSvcs.exe
2772	NETSTAT.EXE
2772	NETSTAT.EXE
2772	NETSTAT.EXE
2772	NETSTAT.EXE
2772	NETSTAT.EXE
2772	NETSTAT.EXE
2772	NETSTAT.EXE
2772	NETSTAT.EXE
2772	NETSTAT.EXE
2772	NETSTAT.EXE
2772	NETSTAT.EXE
2772	NETSTAT.EXE
2772	NETSTAT.EXE
2772	NETSTAT.EXE
2772	NETSTAT.EXE
2772	NETSTAT.EXE
2772	NETSTAT.EXE
2772	NETSTAT.EXE
2772	NETSTAT.EXE
2772	NETSTAT.EXE
2772	NETSTAT.EXE
2772	NETSTAT.EXE
2772	NETSTAT.EXE
2772	NETSTAT.EXE
2772	NETSTAT.EXE
2772	NETSTAT.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

RegSvcs.exeNETSTAT.EXE

pid process

2396 RegSvcs.exe
2396 RegSvcs.exe
2396 RegSvcs.exe
2772 NETSTAT.EXE
2772 NETSTAT.EXE

pid	process
2396	RegSvcs.exe
2396	RegSvcs.exe
2396	RegSvcs.exe
2772	NETSTAT.EXE
2772	NETSTAT.EXE

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exepowershell.exepowershell.exeRegSvcs.exeNETSTAT.EXE

description	pid	process
Token: SeDebugPrivilege	2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe
Token: SeDebugPrivilege	2604	powershell.exe
Token: SeDebugPrivilege	2548	powershell.exe
Token: SeDebugPrivilege	2396	RegSvcs.exe
Token: SeDebugPrivilege	2772	NETSTAT.EXE

Suspicious use of WriteProcessMemory 37 IoCs

Processes:

2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exeExplorer.EXENETSTAT.EXE

description	pid	process	target process
PID 2868 wrote to memory of 2604	2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe	powershell.exe
PID 2868 wrote to memory of 2604	2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe	powershell.exe
PID 2868 wrote to memory of 2604	2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe	powershell.exe
PID 2868 wrote to memory of 2604	2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe	powershell.exe
PID 2868 wrote to memory of 2548	2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe	powershell.exe
PID 2868 wrote to memory of 2548	2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe	powershell.exe
PID 2868 wrote to memory of 2548	2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe	powershell.exe
PID 2868 wrote to memory of 2548	2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe	powershell.exe
PID 2868 wrote to memory of 2680	2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe	schtasks.exe
PID 2868 wrote to memory of 2680	2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe	schtasks.exe
PID 2868 wrote to memory of 2680	2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe	schtasks.exe
PID 2868 wrote to memory of 2680	2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe	schtasks.exe
PID 2868 wrote to memory of 2632	2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe	RegSvcs.exe
PID 2868 wrote to memory of 2632	2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe	RegSvcs.exe
PID 2868 wrote to memory of 2632	2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe	RegSvcs.exe
PID 2868 wrote to memory of 2632	2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe	RegSvcs.exe
PID 2868 wrote to memory of 2632	2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe	RegSvcs.exe
PID 2868 wrote to memory of 2632	2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe	RegSvcs.exe
PID 2868 wrote to memory of 2632	2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe	RegSvcs.exe
PID 2868 wrote to memory of 2396	2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe	RegSvcs.exe
PID 2868 wrote to memory of 2396	2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe	RegSvcs.exe
PID 2868 wrote to memory of 2396	2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe	RegSvcs.exe
PID 2868 wrote to memory of 2396	2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe	RegSvcs.exe
PID 2868 wrote to memory of 2396	2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe	RegSvcs.exe
PID 2868 wrote to memory of 2396	2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe	RegSvcs.exe
PID 2868 wrote to memory of 2396	2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe	RegSvcs.exe
PID 2868 wrote to memory of 2396	2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe	RegSvcs.exe
PID 2868 wrote to memory of 2396	2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe	RegSvcs.exe
PID 2868 wrote to memory of 2396	2868	2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe	RegSvcs.exe
PID 1084 wrote to memory of 2772	1084	Explorer.EXE	NETSTAT.EXE
PID 1084 wrote to memory of 2772	1084	Explorer.EXE	NETSTAT.EXE
PID 1084 wrote to memory of 2772	1084	Explorer.EXE	NETSTAT.EXE
PID 1084 wrote to memory of 2772	1084	Explorer.EXE	NETSTAT.EXE
PID 2772 wrote to memory of 1528	2772	NETSTAT.EXE	cmd.exe
PID 2772 wrote to memory of 1528	2772	NETSTAT.EXE	cmd.exe
PID 2772 wrote to memory of 1528	2772	NETSTAT.EXE	cmd.exe
PID 2772 wrote to memory of 1528	2772	NETSTAT.EXE	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1084

C:\Users\Admin\AppData\Local\Temp\2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2868

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\2024-06-24_fbf01e7b1520736595417ae322402ecf_hiddentear.exe"
3⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2604

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\VsAqHSKubQRZuY.exe"
3⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2548

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VsAqHSKubQRZuY" /XML "C:\Users\Admin\AppData\Local\Temp\tmp475C.tmp"
3⤵
- Scheduled Task/Job: Scheduled Task
PID:2680

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
PID:2632

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:2396

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1064

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:2384

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:2672

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:2576

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:2648

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:2676

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:2712

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:2636

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:2724

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:2644

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:2736

C:\Windows\SysWOW64\NETSTAT.EXE
"C:\Windows\SysWOW64\NETSTAT.EXE"
2⤵
- Suspicious use of SetThreadContext
- Gathers network information
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2772

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
PID:1528

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp475C.tmp
Filesize
1KB

MD5
c2df6e460dd00a63b8120813f3b23370

SHA1
a776a4b00eb80b2798258bab6f1d6845ab4368e8

SHA256
d9799dd26598f455b2f1ec1ea71f0da36cab95e35b8c0c6eae21e91e07f2676e

SHA512
c6ec3cbfb7d7f114ca9298a885a7f3c587ee0a42096527dd02b23248eb436c82322065ab2a63703ac71aec83e94013c5000f3fe7964d2addad55261a6f0b14a7

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
Filesize
7KB

MD5
df48cd3f99c088843a233590a6d3446d

SHA1
fddb89bd6fe995d5a42502692a42f5c266ae5594

SHA256
9284b18a1d9cd470959a1320a0c93e7667b830dc94174d27df2a6073bff3715d

SHA512
d0082da94ed947d9cc7f462ccb255c5e83ff957e665fec74501f49f9e475d99522c86dd0beb0ec59d32dca69149d41495a9b57fb8b8ff45d770436240c46cf3b

Download Submit
memory/1084-35-0x0000000004080000-0x0000000004142000-memory.dmp

Filesize
776KB

Download
memory/1084-28-0x0000000002FE0000-0x00000000030E0000-memory.dmp

Filesize
1024KB

Download
memory/2396-25-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2396-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2396-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2396-24-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2772-30-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2772-29-0x0000000000770000-0x0000000000779000-memory.dmp

Filesize
36KB

Download
memory/2868-4-0x00000000004B0000-0x00000000004C2000-memory.dmp

Filesize
72KB

Download
memory/2868-26-0x0000000074610000-0x0000000074CFE000-memory.dmp

Filesize
6.9MB

Download
memory/2868-0-0x000000007461E000-0x000000007461F000-memory.dmp

Filesize
4KB

Download
memory/2868-2-0x0000000074610000-0x0000000074CFE000-memory.dmp

Filesize
6.9MB

Download
memory/2868-5-0x0000000000520000-0x0000000000528000-memory.dmp

Filesize
32KB

Download
memory/2868-3-0x0000000002050000-0x00000000020DE000-memory.dmp

Filesize
568KB

Download
memory/2868-7-0x0000000005290000-0x0000000005306000-memory.dmp

Filesize
472KB

Download
memory/2868-6-0x0000000000570000-0x000000000057C000-memory.dmp

Filesize
48KB

Download
memory/2868-1-0x0000000000340000-0x00000000003F2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads