formbook | 8ac8568934d1a0ab9a9923449bf11c0d44d97abca0bcabd60b94348642f046ac

Analysis

max time kernel
146s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
09-08-2024 09:09

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General

Target

PAYMENT ERROR.exe
Size

2.1MB
MD5

3d93ad3d9374e100842fc9a5c683d86b
SHA1

6d84040392c2b071dd1546a85ce7c8f527d7e1b3
SHA256

8ac8568934d1a0ab9a9923449bf11c0d44d97abca0bcabd60b94348642f046ac
SHA512

d87baae4c95e41bf82c60c705638d010e3e6e7aa66a95adb9e4280ab2f9acf8b6f633c919f9ef4bc69bac0d700f010c2d72643aacffac4878e7855b3528e40f1
SSDEEP

12288:LB9rRHQ435jKIJE/yGcn5k9BTFE1ksbRz0A7JFVTr/EJ:d9rpQ4BGcATFokMT/n8

Score

10^/10

formbook oi12 credential_access discovery persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

oi12

Decoy

exobello.bio

boinga.xyz

animasriversurf.com

gamesflashg.com

hayatbagievleri.online

washington-living.com

july7.store

x-pod-technologies.com

farmhouseflaire.com

qb52aa.top

datasynthing.xyz

5v28n.rest

legacycommerceltd.com

mundodelosjuguetes.com

wjblades.com

z9b6g8.com

eskimotech.net

dreziuy.xyz

bestsolarcompanies.services

vertemisconsulting.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/1232-5-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1232-8-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/5036-14-0x0000000000A00000-0x0000000000A2F000-memory.dmp	formbook

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	cmstp.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Q8O8OR5H10Q = "C:\\Program Files (x86)\\Windows Mail\\wab.exe"	cmstp.exe

Blocklisted process makes network request 1 IoCs

flow	pid	Process
56	5036	cmstp.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
T1552.001
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 3364 set thread context of 1232	3364	PAYMENT ERROR.exe	90
PID 1232 set thread context of 3508	1232	wab.exe	55
PID 5036 set thread context of 3508	5036	cmstp.exe	55
PID 5036 set thread context of 556	5036	cmstp.exe	88

System Location Discovery: System Language Discovery 1 TTPs 2 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	cmstp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cmstp.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Explorer.EXE

Runs regedit.exe 1 IoCs

pid	Process
1928	regedit.exe

Suspicious behavior: EnumeratesProcesses 56 IoCs

pid	Process
1232	wab.exe
1232	wab.exe
1232	wab.exe
1232	wab.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe

Suspicious behavior: MapViewOfSection 9 IoCs

pid	Process
1232	wab.exe
1232	wab.exe
1232	wab.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe
5036	cmstp.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	1232	wab.exe
Token: SeShutdownPrivilege	3508	Explorer.EXE
Token: SeCreatePagefilePrivilege	3508	Explorer.EXE
Token: SeDebugPrivilege	5036	cmstp.exe
Token: SeShutdownPrivilege	3508	Explorer.EXE
Token: SeCreatePagefilePrivilege	3508	Explorer.EXE
Token: SeShutdownPrivilege	3508	Explorer.EXE
Token: SeCreatePagefilePrivilege	3508	Explorer.EXE

Suspicious use of FindShellTrayWindow 5 IoCs

pid	Process
3508	Explorer.EXE
3508	Explorer.EXE
3508	Explorer.EXE
3508	Explorer.EXE
3508	Explorer.EXE

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
3508	Explorer.EXE
3508	Explorer.EXE
3508	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3508	Explorer.EXE

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3364 wrote to memory of 1928	3364	PAYMENT ERROR.exe	86
PID 3364 wrote to memory of 1928	3364	PAYMENT ERROR.exe	86
PID 3364 wrote to memory of 1928	3364	PAYMENT ERROR.exe	86
PID 3364 wrote to memory of 1928	3364	PAYMENT ERROR.exe	86
PID 3364 wrote to memory of 3768	3364	PAYMENT ERROR.exe	87
PID 3364 wrote to memory of 3768	3364	PAYMENT ERROR.exe	87
PID 3364 wrote to memory of 3768	3364	PAYMENT ERROR.exe	87
PID 3364 wrote to memory of 3768	3364	PAYMENT ERROR.exe	87
PID 3364 wrote to memory of 556	3364	PAYMENT ERROR.exe	88
PID 3364 wrote to memory of 556	3364	PAYMENT ERROR.exe	88
PID 3364 wrote to memory of 556	3364	PAYMENT ERROR.exe	88
PID 3364 wrote to memory of 556	3364	PAYMENT ERROR.exe	88
PID 3364 wrote to memory of 1356	3364	PAYMENT ERROR.exe	89
PID 3364 wrote to memory of 1356	3364	PAYMENT ERROR.exe	89
PID 3364 wrote to memory of 1356	3364	PAYMENT ERROR.exe	89
PID 3364 wrote to memory of 1232	3364	PAYMENT ERROR.exe	90
PID 3364 wrote to memory of 1232	3364	PAYMENT ERROR.exe	90
PID 3364 wrote to memory of 1232	3364	PAYMENT ERROR.exe	90
PID 3364 wrote to memory of 1232	3364	PAYMENT ERROR.exe	90
PID 3364 wrote to memory of 1232	3364	PAYMENT ERROR.exe	90
PID 3364 wrote to memory of 1232	3364	PAYMENT ERROR.exe	90
PID 3364 wrote to memory of 2640	3364	PAYMENT ERROR.exe	91
PID 3364 wrote to memory of 2640	3364	PAYMENT ERROR.exe	91
PID 3364 wrote to memory of 2640	3364	PAYMENT ERROR.exe	91
PID 3508 wrote to memory of 5036	3508	Explorer.EXE	95
PID 3508 wrote to memory of 5036	3508	Explorer.EXE	95
PID 3508 wrote to memory of 5036	3508	Explorer.EXE	95
PID 5036 wrote to memory of 3248	5036	cmstp.exe	96
PID 5036 wrote to memory of 3248	5036	cmstp.exe	96
PID 5036 wrote to memory of 3248	5036	cmstp.exe	96
PID 5036 wrote to memory of 3588	5036	cmstp.exe	98
PID 5036 wrote to memory of 3588	5036	cmstp.exe	98
PID 5036 wrote to memory of 3588	5036	cmstp.exe	98

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3508
- C:\Users\Admin\AppData\Local\Temp\PAYMENT ERROR.exe
  "C:\Users\Admin\AppData\Local\Temp\PAYMENT ERROR.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:3364
- - C:\Windows\regedit.exe
    "C:\Windows\regedit.exe"
    3⤵
    - Runs regedit.exe
    PID:1928
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe"
    3⤵
    PID:3768
- - C:\Windows\System32\notepad.exe
    "C:\Windows\System32\notepad.exe"
    3⤵
    PID:556
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
    3⤵
    PID:1356
- - C:\Program Files (x86)\Windows Mail\wab.exe
    "C:\Program Files (x86)\Windows Mail\wab.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1232
- - C:\Program Files (x86)\Windows Mail\wab.exe
    "C:\Program Files (x86)\Windows Mail\wab.exe"
    3⤵
    PID:2640
- C:\Windows\SysWOW64\cmstp.exe
  "C:\Windows\SysWOW64\cmstp.exe"
  2⤵
  - Adds policy Run key to start application
  - Blocklisted process makes network request
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5036
- - C:\Windows\SysWOW64\cmd.exe
    /c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3248
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:3588

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scripting

T1064

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Scripting

T1064

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\DB1

Filesize
40KB

MD5
a182561a527f929489bf4b8f74f65cd7

SHA1
8cd6866594759711ea1836e86a5b7ca64ee8911f

SHA256
42aad7886965428a941508b776a666a4450eb658cb90e80fae1e7457fc71f914

SHA512
9bc3bf5a82f6f057e873adebd5b7a4c64adef966537ab9c565fe7c4bb3582e2e485ff993d5ab8a6002363231958fabd0933b48811371b8c155eaa74592b66558

Download Submit
C:\Users\Admin\AppData\Roaming\K45N4PDS\K45logim.jpeg

Filesize
83KB

MD5
01e28141a12842a1a0a5abd80c99ae1d

SHA1
3c6f8927f873c6dd17b09d5ada1a3a113e021edc

SHA256
9e9ee1bf8dc9ca2724d1af7c8ba581480a96f723c32c694de54e1021a4730c2d

SHA512
ce02a3762626e174184c12f43ee2338c0f541c6787501042cdc5ebdc24f9122aaa5d0692d1dc007c2e99ff3d64d135365becb096fb2b96b1d0b58b0966455dea

Download Submit
C:\Users\Admin\AppData\Roaming\K45N4PDS\K45logrf.ini

Filesize
40B

MD5
2f245469795b865bdd1b956c23d7893d

SHA1
6ad80b974d3808f5a20ea1e766c7d2f88b9e5895

SHA256
1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361

SHA512
909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f

Download Submit
C:\Users\Admin\AppData\Roaming\K45N4PDS\K45logrg.ini

Filesize
38B

MD5
4aadf49fed30e4c9b3fe4a3dd6445ebe

SHA1
1e332822167c6f351b99615eada2c30a538ff037

SHA256
75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

SHA512
eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

Download Submit
C:\Users\Admin\AppData\Roaming\K45N4PDS\K45logri.ini

Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\K45N4PDS\K45logrv.ini

Filesize
872B

MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
memory/1232-5-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1232-6-0x00000000010F0000-0x000000000143A000-memory.dmp

Filesize
3.3MB

Download
memory/1232-9-0x0000000000AD0000-0x0000000000AE4000-memory.dmp

Filesize
80KB

Download
memory/1232-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3364-11-0x00007FF960200000-0x00007FF960CC1000-memory.dmp

Filesize
10.8MB

Download
memory/3364-0-0x0000013F88C10000-0x0000013F88C1A000-memory.dmp

Filesize
40KB

Download
memory/3364-4-0x0000013F8A7A0000-0x0000013F8A826000-memory.dmp

Filesize
536KB

Download
memory/3364-3-0x00007FF960200000-0x00007FF960CC1000-memory.dmp

Filesize
10.8MB

Download
memory/3364-2-0x0000013F88FD0000-0x0000013F88FD6000-memory.dmp

Filesize
24KB

Download
memory/3364-1-0x00007FF960203000-0x00007FF960205000-memory.dmp

Filesize
8KB

Download
memory/3508-31-0x00000000088C0000-0x000000000899E000-memory.dmp

Filesize
888KB

Download
memory/3508-33-0x00000000088C0000-0x000000000899E000-memory.dmp

Filesize
888KB

Download
memory/3508-10-0x00000000086D0000-0x0000000008878000-memory.dmp

Filesize
1.7MB

Download
memory/3508-41-0x00000000088C0000-0x000000000899E000-memory.dmp

Filesize
888KB

Download
memory/5036-12-0x0000000000570000-0x0000000000586000-memory.dmp

Filesize
88KB

Download
memory/5036-13-0x0000000000570000-0x0000000000586000-memory.dmp

Filesize
88KB

Download
memory/5036-14-0x0000000000A00000-0x0000000000A2F000-memory.dmp

Filesize
188KB

Download