formbook | b4751ea85e4bdc57c69f0dfd09e9622e31eb23bac589d7ee409eceaca56ea280

General

Target

SO.xlsm.com.exe
Size

1000KB
MD5

1897e7a63a0424946e9274d83b405de2
SHA1

e15588e0c4ab4e12206e370b0b122b2b42ecf837
SHA256

b4751ea85e4bdc57c69f0dfd09e9622e31eb23bac589d7ee409eceaca56ea280
SHA512

66f07acbc89ff62dbdbed06efaaa7721f6bd46d9b94a86ba9f2bca3f5552977b8bd9ad375764036a8f6eaa6f74029dabd30e6602ab6f11a719eebec97338560e

Score

10^/10

formbook rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

C2

http://www.hollandhousedesigns.design/vns/

Decoy

sparkspressworld.com

everydayresidency.com

thebosscollectionn.com

milkweedmagic.com

worklesshours.com

romeosfurnituremadera.com

unclepetesproduce.com

athleticamackay.com

9nhl.com

powellassetmanagement.com

jxlamp.com

onpointpetproducts.com

buymysoft.com

nazertrader.com

goprj.com

keeptalkservice.com

aolei1688.com

donstackl.com

almasorchids.com

pj5bwn.com

Signatures

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

Formbook Payload 7 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3784-119-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/3784-120-0x000000000041EBB0-mapping.dmp	formbook
behavioral2/memory/4008-121-0x0000000000400000-0x00000000008AECCF-memory.dmp	formbook
behavioral2/memory/4008-122-0x000000000041EBB0-mapping.dmp	formbook
behavioral2/memory/4008-125-0x0000000000400000-0x00000000008AF000-memory.dmp	formbook
behavioral2/memory/2144-133-0x0000000002D90000-0x0000000002DBE000-memory.dmp	formbook
behavioral2/memory/4056-140-0x0000000000FC0000-0x0000000000FEE000-memory.dmp	formbook

Executes dropped EXE 1 IoCs

Processes:

ummvhsex.pif

pid process

2448 ummvhsex.pif

pid	process
2448	ummvhsex.pif

Suspicious use of SetThreadContext 6 IoCs

Processes:

ummvhsex.pifRegSvcs.exeRegSvcs.execmstp.exe

description	pid	process	target process
PID 2448 set thread context of 3784	2448	ummvhsex.pif	RegSvcs.exe
PID 2448 set thread context of 4008	2448	ummvhsex.pif	RegSvcs.exe
PID 3784 set thread context of 3048	3784	RegSvcs.exe	Explorer.EXE
PID 4008 set thread context of 3048	4008	RegSvcs.exe	Explorer.EXE
PID 4008 set thread context of 3048	4008	RegSvcs.exe	Explorer.EXE
PID 2144 set thread context of 3048	2144	cmstp.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

4056 ipconfig.exe

pid	process
4056	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

RegSvcs.exeRegSvcs.execmstp.exeipconfig.exe

pid	process
3784	RegSvcs.exe
3784	RegSvcs.exe
4008	RegSvcs.exe
4008	RegSvcs.exe
3784	RegSvcs.exe
3784	RegSvcs.exe
4008	RegSvcs.exe
4008	RegSvcs.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
4008	RegSvcs.exe
4008	RegSvcs.exe
4056	ipconfig.exe
4056	ipconfig.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe
2144	cmstp.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3048 Explorer.EXE
Suspicious behavior: MapViewOfSection 9 IoCs

Processes:

RegSvcs.exeRegSvcs.execmstp.exe

pid process

3784 RegSvcs.exe
4008 RegSvcs.exe
3784 RegSvcs.exe
3784 RegSvcs.exe
2144 cmstp.exe
4008 RegSvcs.exe
4008 RegSvcs.exe
4008 RegSvcs.exe
2144 cmstp.exe

pid	process
3048	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 12 IoCs

Processes:

RegSvcs.exeRegSvcs.exeExplorer.EXEcmstp.exeipconfig.exe

description	pid	process
Token: SeDebugPrivilege	3784	RegSvcs.exe
Token: SeDebugPrivilege	4008	RegSvcs.exe
Token: SeShutdownPrivilege	3048	Explorer.EXE
Token: SeCreatePagefilePrivilege	3048	Explorer.EXE
Token: SeShutdownPrivilege	3048	Explorer.EXE
Token: SeCreatePagefilePrivilege	3048	Explorer.EXE
Token: SeDebugPrivilege	2144	cmstp.exe
Token: SeDebugPrivilege	4056	ipconfig.exe
Token: SeShutdownPrivilege	3048	Explorer.EXE
Token: SeCreatePagefilePrivilege	3048	Explorer.EXE
Token: SeShutdownPrivilege	3048	Explorer.EXE
Token: SeCreatePagefilePrivilege	3048	Explorer.EXE

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

SO.xlsm.com.exeummvhsex.pifExplorer.EXEcmstp.exe

description	pid	process	target process
PID 2204 wrote to memory of 2448	2204	SO.xlsm.com.exe	ummvhsex.pif
PID 2204 wrote to memory of 2448	2204	SO.xlsm.com.exe	ummvhsex.pif
PID 2204 wrote to memory of 2448	2204	SO.xlsm.com.exe	ummvhsex.pif
PID 2448 wrote to memory of 4008	2448	ummvhsex.pif	RegSvcs.exe
PID 2448 wrote to memory of 4008	2448	ummvhsex.pif	RegSvcs.exe
PID 2448 wrote to memory of 4008	2448	ummvhsex.pif	RegSvcs.exe
PID 2448 wrote to memory of 3784	2448	ummvhsex.pif	RegSvcs.exe
PID 2448 wrote to memory of 3784	2448	ummvhsex.pif	RegSvcs.exe
PID 2448 wrote to memory of 3784	2448	ummvhsex.pif	RegSvcs.exe
PID 2448 wrote to memory of 3784	2448	ummvhsex.pif	RegSvcs.exe
PID 2448 wrote to memory of 3784	2448	ummvhsex.pif	RegSvcs.exe
PID 2448 wrote to memory of 3784	2448	ummvhsex.pif	RegSvcs.exe
PID 2448 wrote to memory of 4008	2448	ummvhsex.pif	RegSvcs.exe
PID 2448 wrote to memory of 4008	2448	ummvhsex.pif	RegSvcs.exe
PID 3048 wrote to memory of 2144	3048	Explorer.EXE	cmstp.exe
PID 3048 wrote to memory of 2144	3048	Explorer.EXE	cmstp.exe
PID 3048 wrote to memory of 2144	3048	Explorer.EXE	cmstp.exe
PID 2144 wrote to memory of 768	2144	cmstp.exe	cmd.exe
PID 2144 wrote to memory of 768	2144	cmstp.exe	cmd.exe
PID 2144 wrote to memory of 768	2144	cmstp.exe	cmd.exe
PID 3048 wrote to memory of 4056	3048	Explorer.EXE	ipconfig.exe
PID 3048 wrote to memory of 4056	3048	Explorer.EXE	ipconfig.exe
PID 3048 wrote to memory of 4056	3048	Explorer.EXE	ipconfig.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3048

C:\Users\Admin\AppData\Local\Temp\SO.xlsm.com.exe
"C:\Users\Admin\AppData\Local\Temp\SO.xlsm.com.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:2204

C:\Users\Admin\57992106\ummvhsex.pif
"C:\Users\Admin\57992106\ummvhsex.pif" smlhxxnpxo.scp
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2448

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
4⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:4008

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
4⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:3784

C:\Windows\SysWOW64\cmstp.exe
"C:\Windows\SysWOW64\cmstp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2144

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
PID:768

C:\Windows\SysWOW64\ipconfig.exe
"C:\Windows\SysWOW64\ipconfig.exe"
2⤵
- Gathers network information
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4056

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Command-Line Interface

1

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\57992106\cnrxxvsq.xml
MD5
8ba6d1bcca58443c729743475e797e1b

SHA1
a270f64248909dc7fef1637d29297f3b3512cbeb

SHA256
c1771a56fdd00339066ffad9a8d0ed247dcaaafa0076f30e5477ce769c802048

SHA512
4f5506ea2c0a0349edbdfaa3a19fa7f300fdc6cde15f53e1c17d1cb6e998294e07809336382004d5e3f805cbef49c2df8aa2d74bea7c68aafee60310e009f40a

Download Submit
C:\Users\Admin\57992106\smlhxxnpxo.scp
MD5
66c7ff0768ddb64f4504146a56ed004b

SHA1
88507bd159e02bddfb5153cff306a49407c8d650

SHA256
bf8823d58e7a374fec3f69a38ec91e93c0598e0bf27c9aa4c2a21aaca05a77e9

SHA512
9d4bb287ca55d2cc486bb5c51a438443828f5891497b196a2da0f9ca349742680c3a6022b742c137adb9fbc8892b46afa97407593b1d2f492a27e6525b9387fb

Download Submit
C:\Users\Admin\57992106\ummvhsex.pif
MD5
6b57334b6cde8f40e11ad21b9e878adf

SHA1
4a6e4ad50297b3d941a392fac503a6731fab6eac

SHA256
0ce3edfd31e07ed4e16495a92e107ca5b60e2e6ae938de2a57a565d2d7d256db

SHA512
8d0fb7a156d07b416b4d102eabb0ba06cac3696ca3205f0d69a21077c6011adf192cc30530c3716ad0fba92cfeb50d9dbf96f6a65c4955fde093a37d167e05ff

Download Submit
C:\Users\Admin\57992106\ummvhsex.pif
MD5
6b57334b6cde8f40e11ad21b9e878adf

SHA1
4a6e4ad50297b3d941a392fac503a6731fab6eac

SHA256
0ce3edfd31e07ed4e16495a92e107ca5b60e2e6ae938de2a57a565d2d7d256db

SHA512
8d0fb7a156d07b416b4d102eabb0ba06cac3696ca3205f0d69a21077c6011adf192cc30530c3716ad0fba92cfeb50d9dbf96f6a65c4955fde093a37d167e05ff

Download Submit
memory/768-134-0x0000000000000000-mapping.dmp

Download
memory/2144-131-0x0000000000000000-mapping.dmp

Download
memory/2144-142-0x0000000004BC0000-0x0000000004C53000-memory.dmp

Filesize
588KB

Download
memory/2144-135-0x0000000004DF0000-0x0000000005110000-memory.dmp

Filesize
3.1MB

Download
memory/2144-133-0x0000000002D90000-0x0000000002DBE000-memory.dmp

Filesize
184KB

Download
memory/2144-132-0x0000000000B20000-0x0000000000B36000-memory.dmp

Filesize
88KB

Download
memory/2448-114-0x0000000000000000-mapping.dmp

Download
memory/3048-137-0x0000000006560000-0x0000000006647000-memory.dmp

Filesize
924KB

Download
memory/3048-143-0x00000000069B0000-0x0000000006A73000-memory.dmp

Filesize
780KB

Download
memory/3048-130-0x00000000030A0000-0x0000000003199000-memory.dmp

Filesize
996KB

Download
memory/3048-128-0x0000000006860000-0x00000000069A8000-memory.dmp

Filesize
1.3MB

Download
memory/3784-127-0x00000000016C0000-0x00000000016D4000-memory.dmp

Filesize
80KB

Download
memory/3784-119-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3784-120-0x000000000041EBB0-mapping.dmp

Download
memory/3784-124-0x00000000016F0000-0x0000000001A10000-memory.dmp

Filesize
3.1MB

Download
memory/4008-121-0x0000000000400000-0x00000000008AECCF-memory.dmp

Filesize
4.7MB

Download
memory/4008-122-0x000000000041EBB0-mapping.dmp

Download
memory/4008-125-0x0000000000400000-0x00000000008AF000-memory.dmp

Filesize
4.7MB

Download
memory/4008-136-0x00000000016D0000-0x00000000016E4000-memory.dmp

Filesize
80KB

Download
memory/4008-126-0x00000000017A0000-0x0000000001AC0000-memory.dmp

Filesize
3.1MB

Download
memory/4008-129-0x0000000001690000-0x00000000016A4000-memory.dmp

Filesize
80KB

Download
memory/4056-138-0x0000000000000000-mapping.dmp

Download
memory/4056-139-0x0000000001010000-0x000000000101B000-memory.dmp

Filesize
44KB

Download
memory/4056-141-0x00000000039F0000-0x0000000003D10000-memory.dmp

Filesize
3.1MB

Download
memory/4056-140-0x0000000000FC0000-0x0000000000FEE000-memory.dmp

Filesize
184KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads