formbook | e3982b1cbd3445eb68e177c578113fb2d35b4ed924fbdd7486841846c7a5beb5

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03-09-2024 06:11

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General

Target

productXsamplesXpdf.exe
Size

2.0MB
MD5

df6a3df979ff89cc133fd2e56a3b0c7b
SHA1

9eca96ef06673d9800a008e18f86fc2569633b15
SHA256

e3982b1cbd3445eb68e177c578113fb2d35b4ed924fbdd7486841846c7a5beb5
SHA512

42a7e84f5510dcfdcc9fb24195d4841a6fdaecd13a268bbe94983053b57dfaeba3d7dacee6b42388b4362397c81dfd1d4f15701ae8c125b4c66d4694b56bd67a
SSDEEP

49152:euAEE6l/kZzz3uBytwA6cYAyhEvFT4W1ed4zW2Z:ZuzWU5Z

Score

10^/10

formbook kmge credential_access discovery execution persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

kmge

Decoy

jia0752d.com

cq0jt.sbs

whimsicalweddingrentals.com

meetsex-here.life

hhe-crv220.com

bedbillionaire.com

soycmo.com

mrawkward.xyz

11ramshornroad.com

motoyonaturals.com

thischicloves.com

gacorbet.pro

ihsanid.com

pancaketurner.com

santanarstore.com

cr3dtv.com

negotools.com

landfillequip.com

sejasuapropriachefe.com

diamant-verkopen.store

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 4 IoCs

rat

resource	yara_rule
behavioral2/memory/4508-17-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4508-20-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4508-24-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1000-30-0x0000000001190000-0x00000000011BF000-memory.dmp	formbook

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
3232	powershell.exe

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	productXsamplesXpdf.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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\productXsamplesXpdf = "C:\\Users\\Admin\\productXsamplesXpdf.exe"	productXsamplesXpdf.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2600 set thread context of 4508	2600	productXsamplesXpdf.exe	91
PID 4508 set thread context of 3384	4508	ngen.exe	55
PID 4508 set thread context of 3384	4508	ngen.exe	55
PID 1000 set thread context of 3384	1000	cscript.exe	55

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

System Information Discovery
T1082

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	cscript.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-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cscript.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
4304	regedit.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
3232	powershell.exe
3232	powershell.exe
4508	ngen.exe
4508	ngen.exe
4508	ngen.exe
4508	ngen.exe
4508	ngen.exe
4508	ngen.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe

Suspicious behavior: MapViewOfSection 8 IoCs

pid	Process
4508	ngen.exe
4508	ngen.exe
4508	ngen.exe
4508	ngen.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe
1000	cscript.exe

Suspicious use of AdjustPrivilegeToken 20 IoCs

description	pid	Process
Token: SeDebugPrivilege	2600	productXsamplesXpdf.exe
Token: SeDebugPrivilege	3232	powershell.exe
Token: SeDebugPrivilege	4508	ngen.exe
Token: SeShutdownPrivilege	3384	Explorer.EXE
Token: SeCreatePagefilePrivilege	3384	Explorer.EXE
Token: SeShutdownPrivilege	3384	Explorer.EXE
Token: SeCreatePagefilePrivilege	3384	Explorer.EXE
Token: SeShutdownPrivilege	3384	Explorer.EXE
Token: SeCreatePagefilePrivilege	3384	Explorer.EXE
Token: SeShutdownPrivilege	3384	Explorer.EXE
Token: SeCreatePagefilePrivilege	3384	Explorer.EXE
Token: SeShutdownPrivilege	3384	Explorer.EXE
Token: SeCreatePagefilePrivilege	3384	Explorer.EXE
Token: SeShutdownPrivilege	3384	Explorer.EXE
Token: SeCreatePagefilePrivilege	3384	Explorer.EXE
Token: SeDebugPrivilege	1000	cscript.exe
Token: SeShutdownPrivilege	3384	Explorer.EXE
Token: SeCreatePagefilePrivilege	3384	Explorer.EXE
Token: SeShutdownPrivilege	3384	Explorer.EXE
Token: SeCreatePagefilePrivilege	3384	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3384	Explorer.EXE
3384	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3384	Explorer.EXE

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2600 wrote to memory of 3232	2600	productXsamplesXpdf.exe	84
PID 2600 wrote to memory of 3232	2600	productXsamplesXpdf.exe	84
PID 2600 wrote to memory of 4632	2600	productXsamplesXpdf.exe	86
PID 2600 wrote to memory of 4632	2600	productXsamplesXpdf.exe	86
PID 2600 wrote to memory of 4632	2600	productXsamplesXpdf.exe	86
PID 2600 wrote to memory of 4632	2600	productXsamplesXpdf.exe	86
PID 2600 wrote to memory of 4304	2600	productXsamplesXpdf.exe	89
PID 2600 wrote to memory of 4304	2600	productXsamplesXpdf.exe	89
PID 2600 wrote to memory of 4304	2600	productXsamplesXpdf.exe	89
PID 2600 wrote to memory of 4304	2600	productXsamplesXpdf.exe	89
PID 2600 wrote to memory of 4508	2600	productXsamplesXpdf.exe	91
PID 2600 wrote to memory of 4508	2600	productXsamplesXpdf.exe	91
PID 2600 wrote to memory of 4508	2600	productXsamplesXpdf.exe	91
PID 2600 wrote to memory of 4508	2600	productXsamplesXpdf.exe	91
PID 2600 wrote to memory of 4508	2600	productXsamplesXpdf.exe	91
PID 2600 wrote to memory of 4508	2600	productXsamplesXpdf.exe	91
PID 3384 wrote to memory of 1000	3384	Explorer.EXE	99
PID 3384 wrote to memory of 1000	3384	Explorer.EXE	99
PID 3384 wrote to memory of 1000	3384	Explorer.EXE	99
PID 1000 wrote to memory of 2972	1000	cscript.exe	102
PID 1000 wrote to memory of 2972	1000	cscript.exe	102
PID 1000 wrote to memory of 2972	1000	cscript.exe	102
PID 1000 wrote to memory of 2260	1000	cscript.exe	104
PID 1000 wrote to memory of 2260	1000	cscript.exe	104
PID 1000 wrote to memory of 2260	1000	cscript.exe	104

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3384
- C:\Users\Admin\AppData\Local\Temp\productXsamplesXpdf.exe
  "C:\Users\Admin\AppData\Local\Temp\productXsamplesXpdf.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2600
- - C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath $env:UserProfile
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3232
- - C:\Program Files (x86)\Windows Media Player\wmplayer.exe
    "C:\Program Files (x86)\Windows Media Player\wmplayer.exe"
    3⤵
    PID:4632
- - C:\Windows\regedit.exe
    "C:\Windows\regedit.exe"
    3⤵
    - Runs regedit.exe
    PID:4304
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4508
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:4376
- C:\Windows\SysWOW64\cscript.exe
  "C:\Windows\SysWOW64\cscript.exe"
  2⤵
  - 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:1000
- - 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:2972
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:2260

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

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

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
40KB

MD5
a182561a527f929489bf4b8f74f65cd7

SHA1
8cd6866594759711ea1836e86a5b7ca64ee8911f

SHA256
42aad7886965428a941508b776a666a4450eb658cb90e80fae1e7457fc71f914

SHA512
9bc3bf5a82f6f057e873adebd5b7a4c64adef966537ab9c565fe7c4bb3582e2e485ff993d5ab8a6002363231958fabd0933b48811371b8c155eaa74592b66558

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_031mzl3o.qvd.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\LK3BNUQ2\LK3logim.jpeg

Filesize
77KB

MD5
6c98aaf1e6a0f057baf90193ed6b2dbd

SHA1
806d67d58cba407b396ea110d23aebc1d0de6029

SHA256
7bb7e8194f0e357867650119fba9f00f109dedcc556fa0c14ee6d4aadd09d1b9

SHA512
d357745049e6a0e955fe7c9804e565e99348b58f18f2f2dd738b81b6787cdb65550de51fdc83b050692b984bee26520af007710684d9f184ab75f06f7a7fb748

Download Submit
C:\Users\Admin\AppData\Roaming\LK3BNUQ2\LK3logrf.ini

Filesize
40B

MD5
2f245469795b865bdd1b956c23d7893d

SHA1
6ad80b974d3808f5a20ea1e766c7d2f88b9e5895

SHA256
1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361

SHA512
909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f

Download Submit
C:\Users\Admin\AppData\Roaming\LK3BNUQ2\LK3logrg.ini

Filesize
38B

MD5
4aadf49fed30e4c9b3fe4a3dd6445ebe

SHA1
1e332822167c6f351b99615eada2c30a538ff037

SHA256
75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

SHA512
eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

Download Submit
C:\Users\Admin\AppData\Roaming\LK3BNUQ2\LK3logri.ini

Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\LK3BNUQ2\LK3logrv.ini

Filesize
872B

MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
memory/1000-30-0x0000000001190000-0x00000000011BF000-memory.dmp

Filesize
188KB

Download
memory/1000-28-0x0000000000300000-0x0000000000327000-memory.dmp

Filesize
156KB

Download
memory/1000-29-0x0000000000300000-0x0000000000327000-memory.dmp

Filesize
156KB

Download
memory/3232-16-0x00007FFEAD820000-0x00007FFEAE2E1000-memory.dmp

Filesize
10.8MB

Download
memory/3232-0-0x00007FFEAD823000-0x00007FFEAD825000-memory.dmp

Filesize
8KB

Download
memory/3232-12-0x00007FFEAD820000-0x00007FFEAE2E1000-memory.dmp

Filesize
10.8MB

Download
memory/3232-11-0x00007FFEAD820000-0x00007FFEAE2E1000-memory.dmp

Filesize
10.8MB

Download
memory/3232-10-0x00000177C2380000-0x00000177C23A2000-memory.dmp

Filesize
136KB

Download
memory/3384-26-0x000000000B110000-0x000000000B28E000-memory.dmp

Filesize
1.5MB

Download
memory/3384-22-0x0000000008EC0000-0x0000000008FF5000-memory.dmp

Filesize
1.2MB

Download
memory/3384-27-0x0000000008EC0000-0x0000000008FF5000-memory.dmp

Filesize
1.2MB

Download
memory/3384-49-0x000000000BB80000-0x000000000BD01000-memory.dmp

Filesize
1.5MB

Download
memory/3384-45-0x000000000B110000-0x000000000B28E000-memory.dmp

Filesize
1.5MB

Download
memory/4508-17-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4508-24-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4508-25-0x0000000001A10000-0x0000000001A24000-memory.dmp

Filesize
80KB

Download
memory/4508-20-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4508-21-0x00000000019D0000-0x00000000019E4000-memory.dmp

Filesize
80KB

Download
memory/4508-18-0x0000000001AA0000-0x0000000001DEA000-memory.dmp

Filesize
3.3MB

Download