formbook | 022b6cac20df5a22b26fb3f4f954117589b2a34cf0cd0b0fcc7fc74f742d4ae2

General

Target

PO66535.exe
Size

305KB
MD5

a33117822e49edf3dcef2e4cebc88dee
SHA1

e6fff97e4976ee885bed6e410d9791e1ddd09068
SHA256

ed4c5975dd2434b8e58a71a521021e8fbde3540c76a2518f627571311ad4e4df
SHA512

b5947a7ee1161510b62518770ed53dbc2a9b3fd82441eebbb30ef4d8969cffa7ae192e9b27d93ead0c13a7a49a9b57223f933f66ab8fc90bfd4a424fd144a425

Score

10^/10

formbook q5e persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

q5e

Decoy

2177.ltd

thanxiety.com

max-width.com

fixti.net

mostmaj.com

mobilteknolojiuzmani.com

historyannals.com

wheelchairmotion.com

mossandmoonstonestudio.com

kastellifournis.com

axokey.net

peekl.com

metsteeshirt.com

abcfinancial-inc.com

btxrsp.com

amydh.com

ccoauthority.com

lumacorretora.com

kimfelixrealtor.com

iconext.biz

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Formbook Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1472-63-0x0000000000400000-0x000000000042D000-memory.dmp	formbook
behavioral1/memory/1472-64-0x000000000041E2A0-mapping.dmp	formbook
behavioral1/memory/1472-67-0x0000000000400000-0x000000000042D000-memory.dmp	formbook
behavioral1/memory/688-75-0x0000000000090000-0x00000000000BD000-memory.dmp	formbook

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\8PPXV4W006 = "C:\\Program Files (x86)\\Aktj8sf\\Cookies-zs.exe"	rundll32.exe

Executes dropped EXE 1 IoCs

Processes:

PO66535.exe

pid process

1472 PO66535.exe
Loads dropped DLL 1 IoCs

Processes:

PO66535.exe

pid process

1984 PO66535.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

pid	process
1472	PO66535.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

PO66535.exePO66535.exerundll32.exe

description	pid	process	target process
PID 1984 set thread context of 1472	1984	PO66535.exe	PO66535.exe
PID 1472 set thread context of 1292	1472	PO66535.exe	Explorer.EXE
PID 688 set thread context of 1292	688	rundll32.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

rundll32.exe

description ioc process

File opened for modification C:\Program Files (x86)\Aktj8sf\Cookies-zs.exe rundll32.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Aktj8sf\Cookies-zs.exe	rundll32.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

rundll32.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1819626980-2277161760-1023733287-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	rundll32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

Processes:

PO66535.exePO66535.exerundll32.exe

pid	process
1984	PO66535.exe
1984	PO66535.exe
1984	PO66535.exe
1984	PO66535.exe
1984	PO66535.exe
1984	PO66535.exe
1984	PO66535.exe
1984	PO66535.exe
1472	PO66535.exe
1472	PO66535.exe
688	rundll32.exe
688	rundll32.exe
688	rundll32.exe
688	rundll32.exe
688	rundll32.exe
688	rundll32.exe
688	rundll32.exe
688	rundll32.exe
688	rundll32.exe
688	rundll32.exe
688	rundll32.exe
688	rundll32.exe
688	rundll32.exe
688	rundll32.exe
688	rundll32.exe
688	rundll32.exe
688	rundll32.exe
688	rundll32.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

PO66535.exerundll32.exe

pid process

1472 PO66535.exe
1472 PO66535.exe
1472 PO66535.exe
688 rundll32.exe
688 rundll32.exe
688 rundll32.exe
688 rundll32.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

PO66535.exePO66535.exerundll32.exe

description pid process

Token: SeDebugPrivilege 1984 PO66535.exe
Token: SeDebugPrivilege 1472 PO66535.exe
Token: SeDebugPrivilege 688 rundll32.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1292 Explorer.EXE
1292 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1292 Explorer.EXE
1292 Explorer.EXE

pid	process
1472	PO66535.exe
1472	PO66535.exe
1472	PO66535.exe
688	rundll32.exe
688	rundll32.exe
688	rundll32.exe
688	rundll32.exe

description	pid	process
Token: SeDebugPrivilege	1984	PO66535.exe
Token: SeDebugPrivilege	1472	PO66535.exe
Token: SeDebugPrivilege	688	rundll32.exe

pid	process
1292	Explorer.EXE
1292	Explorer.EXE

pid	process
1292	Explorer.EXE
1292	Explorer.EXE

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

PO66535.exeExplorer.EXErundll32.exe

description	pid	process	target process
PID 1984 wrote to memory of 1472	1984	PO66535.exe	PO66535.exe
PID 1984 wrote to memory of 1472	1984	PO66535.exe	PO66535.exe
PID 1984 wrote to memory of 1472	1984	PO66535.exe	PO66535.exe
PID 1984 wrote to memory of 1472	1984	PO66535.exe	PO66535.exe
PID 1984 wrote to memory of 1472	1984	PO66535.exe	PO66535.exe
PID 1984 wrote to memory of 1472	1984	PO66535.exe	PO66535.exe
PID 1984 wrote to memory of 1472	1984	PO66535.exe	PO66535.exe
PID 1292 wrote to memory of 688	1292	Explorer.EXE	rundll32.exe
PID 1292 wrote to memory of 688	1292	Explorer.EXE	rundll32.exe
PID 1292 wrote to memory of 688	1292	Explorer.EXE	rundll32.exe
PID 1292 wrote to memory of 688	1292	Explorer.EXE	rundll32.exe
PID 1292 wrote to memory of 688	1292	Explorer.EXE	rundll32.exe
PID 1292 wrote to memory of 688	1292	Explorer.EXE	rundll32.exe
PID 1292 wrote to memory of 688	1292	Explorer.EXE	rundll32.exe
PID 688 wrote to memory of 1716	688	rundll32.exe	cmd.exe
PID 688 wrote to memory of 1716	688	rundll32.exe	cmd.exe
PID 688 wrote to memory of 1716	688	rundll32.exe	cmd.exe
PID 688 wrote to memory of 1716	688	rundll32.exe	cmd.exe
PID 688 wrote to memory of 704	688	rundll32.exe	Firefox.exe
PID 688 wrote to memory of 704	688	rundll32.exe	Firefox.exe
PID 688 wrote to memory of 704	688	rundll32.exe	Firefox.exe
PID 688 wrote to memory of 704	688	rundll32.exe	Firefox.exe
PID 688 wrote to memory of 704	688	rundll32.exe	Firefox.exe

System policy modification 1 TTPs 1 IoCs
evasion

Modify Registry
T1112

Processes:

rundll32.exe

description ioc process

Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer rundll32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	rundll32.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1292

C:\Users\Admin\AppData\Local\Temp\PO66535.exe
"C:\Users\Admin\AppData\Local\Temp\PO66535.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1984

C:\Users\Admin\AppData\Local\Temp\PO66535.exe
"C:\Users\Admin\AppData\Local\Temp\PO66535.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1472

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\SysWOW64\rundll32.exe"
2⤵
- Adds policy Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:688

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\PO66535.exe"
3⤵
PID:1716

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:704

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\PO66535.exe
Filesize
305KB

MD5
a33117822e49edf3dcef2e4cebc88dee

SHA1
e6fff97e4976ee885bed6e410d9791e1ddd09068

SHA256
ed4c5975dd2434b8e58a71a521021e8fbde3540c76a2518f627571311ad4e4df

SHA512
b5947a7ee1161510b62518770ed53dbc2a9b3fd82441eebbb30ef4d8969cffa7ae192e9b27d93ead0c13a7a49a9b57223f933f66ab8fc90bfd4a424fd144a425

Download Submit
C:\Users\Admin\AppData\Roaming\17MAR21T\17Mlogim.jpeg
Filesize
71KB

MD5
e2bb4758ba1ffa837967ad2f4fa39f46

SHA1
5984f099fde97cf89850db48e0d5de395f4a1f02

SHA256
d6f739b148726051faa0d5a17c6d73adeee728a41a370659ae58242e1fa88d53

SHA512
dd771ffca7a80e6c0d64f2a4a44e5d8a5c10975e67167ac39dfbf42d98165ab88650e0737c0f4a0dc0e7e89e43a09ec3fb329a39de26f543694e6d06cad6a67a

Download Submit
C:\Users\Admin\AppData\Roaming\17MAR21T\17Mlogrf.ini
Filesize
40B

MD5
2f245469795b865bdd1b956c23d7893d

SHA1
6ad80b974d3808f5a20ea1e766c7d2f88b9e5895

SHA256
1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361

SHA512
909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f

Download Submit
C:\Users\Admin\AppData\Roaming\17MAR21T\17Mlogri.ini
Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\17MAR21T\17Mlogrv.ini
Filesize
40B

MD5
ba3b6bc807d4f76794c4b81b09bb9ba5

SHA1
24cb89501f0212ff3095ecc0aba97dd563718fb1

SHA256
6eebf968962745b2e9de2ca969af7c424916d4e3fe3cc0bb9b3d414abfce9507

SHA512
ecd07e601fc9e3cfc39addd7bd6f3d7f7ff3253afb40bf536e9eaac5a4c243e5ec40fbfd7b216cb0ea29f2517419601e335e33ba19dea4a46f65e38694d465bf

Download Submit
\Users\Admin\AppData\Local\Temp\PO66535.exe
Filesize
305KB

MD5
a33117822e49edf3dcef2e4cebc88dee

SHA1
e6fff97e4976ee885bed6e410d9791e1ddd09068

SHA256
ed4c5975dd2434b8e58a71a521021e8fbde3540c76a2518f627571311ad4e4df

SHA512
b5947a7ee1161510b62518770ed53dbc2a9b3fd82441eebbb30ef4d8969cffa7ae192e9b27d93ead0c13a7a49a9b57223f933f66ab8fc90bfd4a424fd144a425

Download Submit
memory/688-74-0x0000000002450000-0x0000000002753000-memory.dmp

Filesize
3.0MB

Download
memory/688-77-0x0000000000900000-0x0000000000993000-memory.dmp

Filesize
588KB

Download
memory/688-75-0x0000000000090000-0x00000000000BD000-memory.dmp

Filesize
180KB

Download
memory/688-73-0x0000000000620000-0x000000000062E000-memory.dmp

Filesize
56KB

Download
memory/688-71-0x0000000000000000-mapping.dmp

Download
memory/1292-70-0x00000000047B0000-0x0000000004953000-memory.dmp

Filesize
1.6MB

Download
memory/1292-78-0x0000000006C00000-0x0000000006D78000-memory.dmp

Filesize
1.5MB

Download
memory/1472-60-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1472-69-0x00000000002C0000-0x00000000002D4000-memory.dmp

Filesize
80KB

Download
memory/1472-68-0x0000000000950000-0x0000000000C53000-memory.dmp

Filesize
3.0MB

Download
memory/1472-67-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1472-64-0x000000000041E2A0-mapping.dmp

Download
memory/1472-63-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1472-61-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1716-76-0x0000000000000000-mapping.dmp

Download
memory/1984-54-0x00000000010C0000-0x0000000001112000-memory.dmp

Filesize
328KB

Download
memory/1984-58-0x00000000009A0000-0x00000000009A8000-memory.dmp

Filesize
32KB

Download
memory/1984-57-0x00000000004D0000-0x00000000004E6000-memory.dmp

Filesize
88KB

Download
memory/1984-56-0x00000000007A0000-0x00000000007D8000-memory.dmp

Filesize
224KB

Download
memory/1984-55-0x00000000752D1000-0x00000000752D3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads