formbook | dffde60dc2cab7ca3e0f5c7b19c4bc654dc6941dbf3a7e5ef9b312b7c4c1c656

General

Target

dffde60dc2cab7ca3e0f5c7b19c4bc654dc6941dbf3a7e5ef9b312b7c4c1c656.exe
Size

289KB
MD5

6ee33079ee7b4cf222209c1b8b59343f
SHA1

a5d080a864977564aa336acb35fbd27b394d622b
SHA256

dffde60dc2cab7ca3e0f5c7b19c4bc654dc6941dbf3a7e5ef9b312b7c4c1c656
SHA512

66dfb31df07f822c7daba3c66cc06f900d8b2cd83d6e0224cb079836ca52e17d446788ffae8daa56a369e43f54fd9e3fc7017f9e8a8930293b7640752c839abd

Score

10^/10

formbook s4s9 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

s4s9

Decoy

qianyuandianshang.com

bernardklein.com

slhomeservices.com

findasaas.com

janellelancaster.xyz

umkpro.site

nr6949.online

mersquare.club

lanariproperties.com

3rdeyefocused.com

giftexpress8260.xyz

hilleleven.xyz

beajod.com

kosazs.online

ishare.team

mb314.com

xjjinxingda.com

ayekooprojectamazing.com

ballsybanter.com

todayshoppingbd.com

Signatures

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

Formbook payload 5 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/392-144-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/392-146-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/392-154-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/3056-157-0x0000000000690000-0x00000000006BF000-memory.dmp	formbook
behavioral1/memory/3056-160-0x0000000000690000-0x00000000006BF000-memory.dmp	formbook

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

Processes:

dffde60dc2cab7ca3e0f5c7b19c4bc654dc6941dbf3a7e5ef9b312b7c4c1c656.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Control Panel\International\Geo\Nation	dffde60dc2cab7ca3e0f5c7b19c4bc654dc6941dbf3a7e5ef9b312b7c4c1c656.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

dffde60dc2cab7ca3e0f5c7b19c4bc654dc6941dbf3a7e5ef9b312b7c4c1c656.exeMSBuild.exeipconfig.exe

description	pid	process	target process
PID 3116 set thread context of 392	3116	dffde60dc2cab7ca3e0f5c7b19c4bc654dc6941dbf3a7e5ef9b312b7c4c1c656.exe	MSBuild.exe
PID 392 set thread context of 3068	392	MSBuild.exe	Explorer.EXE
PID 392 set thread context of 3068	392	MSBuild.exe	Explorer.EXE
PID 3056 set thread context of 3068	3056	ipconfig.exe	Explorer.EXE

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

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

System Information Discovery
T1082

Command-Line Interface
T1059

Processes:

ipconfig.exe

pid process

3056 ipconfig.exe

pid	process
3056	ipconfig.exe

Modifies registry class 2 IoCs

Processes:

Explorer.EXE

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 61 IoCs

Processes:

dffde60dc2cab7ca3e0f5c7b19c4bc654dc6941dbf3a7e5ef9b312b7c4c1c656.exepowershell.exeMSBuild.exeipconfig.exe

pid	process
3116	dffde60dc2cab7ca3e0f5c7b19c4bc654dc6941dbf3a7e5ef9b312b7c4c1c656.exe
2288	powershell.exe
2288	powershell.exe
3116	dffde60dc2cab7ca3e0f5c7b19c4bc654dc6941dbf3a7e5ef9b312b7c4c1c656.exe
3116	dffde60dc2cab7ca3e0f5c7b19c4bc654dc6941dbf3a7e5ef9b312b7c4c1c656.exe
392	MSBuild.exe
392	MSBuild.exe
392	MSBuild.exe
392	MSBuild.exe
392	MSBuild.exe
392	MSBuild.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe
3056	ipconfig.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3068 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

MSBuild.exeipconfig.exe

pid process

392 MSBuild.exe
392 MSBuild.exe
392 MSBuild.exe
392 MSBuild.exe
3056 ipconfig.exe
3056 ipconfig.exe

pid	process
3068	Explorer.EXE

pid	process
392	MSBuild.exe
392	MSBuild.exe
392	MSBuild.exe
392	MSBuild.exe
3056	ipconfig.exe
3056	ipconfig.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

Processes:

dffde60dc2cab7ca3e0f5c7b19c4bc654dc6941dbf3a7e5ef9b312b7c4c1c656.exepowershell.exeMSBuild.exeipconfig.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	3116	dffde60dc2cab7ca3e0f5c7b19c4bc654dc6941dbf3a7e5ef9b312b7c4c1c656.exe
Token: SeDebugPrivilege	2288	powershell.exe
Token: SeDebugPrivilege	392	MSBuild.exe
Token: SeDebugPrivilege	3056	ipconfig.exe
Token: SeShutdownPrivilege	3068	Explorer.EXE
Token: SeCreatePagefilePrivilege	3068	Explorer.EXE
Token: SeShutdownPrivilege	3068	Explorer.EXE
Token: SeCreatePagefilePrivilege	3068	Explorer.EXE
Token: SeShutdownPrivilege	3068	Explorer.EXE
Token: SeCreatePagefilePrivilege	3068	Explorer.EXE
Token: SeShutdownPrivilege	3068	Explorer.EXE
Token: SeCreatePagefilePrivilege	3068	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

dffde60dc2cab7ca3e0f5c7b19c4bc654dc6941dbf3a7e5ef9b312b7c4c1c656.exeExplorer.EXEipconfig.exe

description	pid	process	target process
PID 3116 wrote to memory of 2288	3116	dffde60dc2cab7ca3e0f5c7b19c4bc654dc6941dbf3a7e5ef9b312b7c4c1c656.exe	powershell.exe
PID 3116 wrote to memory of 2288	3116	dffde60dc2cab7ca3e0f5c7b19c4bc654dc6941dbf3a7e5ef9b312b7c4c1c656.exe	powershell.exe
PID 3116 wrote to memory of 2288	3116	dffde60dc2cab7ca3e0f5c7b19c4bc654dc6941dbf3a7e5ef9b312b7c4c1c656.exe	powershell.exe
PID 3116 wrote to memory of 392	3116	dffde60dc2cab7ca3e0f5c7b19c4bc654dc6941dbf3a7e5ef9b312b7c4c1c656.exe	MSBuild.exe
PID 3116 wrote to memory of 392	3116	dffde60dc2cab7ca3e0f5c7b19c4bc654dc6941dbf3a7e5ef9b312b7c4c1c656.exe	MSBuild.exe
PID 3116 wrote to memory of 392	3116	dffde60dc2cab7ca3e0f5c7b19c4bc654dc6941dbf3a7e5ef9b312b7c4c1c656.exe	MSBuild.exe
PID 3116 wrote to memory of 392	3116	dffde60dc2cab7ca3e0f5c7b19c4bc654dc6941dbf3a7e5ef9b312b7c4c1c656.exe	MSBuild.exe
PID 3116 wrote to memory of 392	3116	dffde60dc2cab7ca3e0f5c7b19c4bc654dc6941dbf3a7e5ef9b312b7c4c1c656.exe	MSBuild.exe
PID 3116 wrote to memory of 392	3116	dffde60dc2cab7ca3e0f5c7b19c4bc654dc6941dbf3a7e5ef9b312b7c4c1c656.exe	MSBuild.exe
PID 3068 wrote to memory of 3056	3068	Explorer.EXE	ipconfig.exe
PID 3068 wrote to memory of 3056	3068	Explorer.EXE	ipconfig.exe
PID 3068 wrote to memory of 3056	3068	Explorer.EXE	ipconfig.exe
PID 3056 wrote to memory of 1540	3056	ipconfig.exe	cmd.exe
PID 3056 wrote to memory of 1540	3056	ipconfig.exe	cmd.exe
PID 3056 wrote to memory of 1540	3056	ipconfig.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3068

C:\Users\Admin\AppData\Local\Temp\dffde60dc2cab7ca3e0f5c7b19c4bc654dc6941dbf3a7e5ef9b312b7c4c1c656.exe
"C:\Users\Admin\AppData\Local\Temp\dffde60dc2cab7ca3e0f5c7b19c4bc654dc6941dbf3a7e5ef9b312b7c4c1c656.exe"
2⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3116

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgA=
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2288

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:392

C:\Windows\SysWOW64\ipconfig.exe
"C:\Windows\SysWOW64\ipconfig.exe"
2⤵
- Suspicious use of SetThreadContext
- Gathers network information
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3056

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
3⤵
PID:1540

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Command-Line Interface

1

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/392-143-0x0000000000000000-mapping.dmp

Download
memory/392-154-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/392-151-0x00000000015A0000-0x00000000015B4000-memory.dmp

Filesize
80KB

Download
memory/392-148-0x0000000001060000-0x0000000001074000-memory.dmp

Filesize
80KB

Download
memory/392-147-0x00000000015F0000-0x000000000193A000-memory.dmp

Filesize
3.3MB

Download
memory/392-146-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/392-144-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1540-158-0x0000000000000000-mapping.dmp

Download
memory/2288-137-0x0000000005530000-0x0000000005B58000-memory.dmp

Filesize
6.2MB

Download
memory/2288-135-0x0000000000000000-mapping.dmp

Download
memory/2288-140-0x00000000063C0000-0x00000000063DE000-memory.dmp

Filesize
120KB

Download
memory/2288-141-0x0000000007A10000-0x000000000808A000-memory.dmp

Filesize
6.5MB

Download
memory/2288-142-0x00000000068D0000-0x00000000068EA000-memory.dmp

Filesize
104KB

Download
memory/2288-138-0x00000000054B0000-0x0000000005516000-memory.dmp

Filesize
408KB

Download
memory/2288-139-0x0000000005C60000-0x0000000005CC6000-memory.dmp

Filesize
408KB

Download
memory/2288-136-0x0000000004E20000-0x0000000004E56000-memory.dmp

Filesize
216KB

Download
memory/3056-153-0x0000000000000000-mapping.dmp

Download
memory/3056-159-0x0000000000CF0000-0x0000000000D83000-memory.dmp

Filesize
588KB

Download
memory/3056-160-0x0000000000690000-0x00000000006BF000-memory.dmp

Filesize
188KB

Download
memory/3056-155-0x0000000000B40000-0x0000000000B4B000-memory.dmp

Filesize
44KB

Download
memory/3056-156-0x0000000000EB0000-0x00000000011FA000-memory.dmp

Filesize
3.3MB

Download
memory/3056-157-0x0000000000690000-0x00000000006BF000-memory.dmp

Filesize
188KB

Download
memory/3068-149-0x00000000033E0000-0x0000000003516000-memory.dmp

Filesize
1.2MB

Download
memory/3068-162-0x0000000008C30000-0x0000000008CF9000-memory.dmp

Filesize
804KB

Download
memory/3068-161-0x0000000008C30000-0x0000000008CF9000-memory.dmp

Filesize
804KB

Download
memory/3068-152-0x0000000008B00000-0x0000000008C2F000-memory.dmp

Filesize
1.2MB

Download
memory/3116-130-0x0000000000140000-0x000000000018E000-memory.dmp

Filesize
312KB

Download
memory/3116-131-0x00000000051E0000-0x0000000005784000-memory.dmp

Filesize
5.6MB

Download
memory/3116-132-0x0000000004CD0000-0x0000000004D62000-memory.dmp

Filesize
584KB

Download
memory/3116-133-0x0000000005820000-0x000000000582A000-memory.dmp

Filesize
40KB

Download
memory/3116-134-0x00000000063A0000-0x00000000063C2000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads