formbook | 573d8ee9678cef8163e96937a6a5a4f14a5ade12f5646ab05550c0038c770e5d

Analysis

max time kernel
149s
max time network
146s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
14-08-2024 17:20

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General

Target

z42ordemdecomprapdf.exe
Size

2.2MB
MD5

15c4948711c3ac6250ff98d0e5272b27
SHA1

545a473d3a8fc3810fbb0ff04e2d4d28ab95bedb
SHA256

573d8ee9678cef8163e96937a6a5a4f14a5ade12f5646ab05550c0038c770e5d
SHA512

d3a0e2273fb307b456f8c860028a489c26011dc75ffd6075473babf320962530d690319706ef03ba2869c2c7d91ec95933ab4c4ed13d755de79d55d82ae58a41
SSDEEP

12288:WK9Xxc/7gzqLiOG1tBda9myeHjQPBPwrgiQa5o0fpfEXKX:n9XxcjgOG3Bda9WmPegiQa5Pftkm

Score

10^/10

formbook gy15 credential_access discovery evasion execution persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

gy15

Decoy

yb40w.top

286live.com

poozonlife.com

availableweedsonline.com

22926839.com

petlovepet.fun

halbaexpress.com

newswingbd.com

discountdesh.com

jwoalhbn.xyz

dandevonald.com

incrediblyxb.christmas

ailia.pro

ga3ki3.com

99812.photos

richiecom.net

ummahskills.online

peakleyva.store

a1cbloodtest.com

insurancebygarry.com

Signatures

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

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	z42ordemdecomprapdf.exe

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 2 IoCs

rat

resource	yara_rule
behavioral1/memory/2872-20-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2648-24-0x00000000000C0000-0x00000000000EF000-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
Set value (str)	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\9RO8KTLHENNX = "C:\\Program Files (x86)\\Windows Media Player\\wmplayer.exe"	msdt.exe
Key created	\Registry\User\S-1-5-21-2257386474-3982792636-3902186748-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	msdt.exe

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
2676	powershell.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	z42ordemdecomprapdf.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	z42ordemdecomprapdf.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3044 set thread context of 2872	3044	z42ordemdecomprapdf.exe	36
PID 2872 set thread context of 1248	2872	wmplayer.exe	21
PID 2648 set thread context of 1248	2648	msdt.exe	21

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 1 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	msdt.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-2257386474-3982792636-3902186748-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	msdt.exe

Runs regedit.exe 1 IoCs

pid	Process
2784	regedit.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2676	powershell.exe
2872	wmplayer.exe
2872	wmplayer.exe
2648	msdt.exe
2648	msdt.exe
2648	msdt.exe
2648	msdt.exe
2648	msdt.exe
2648	msdt.exe
2648	msdt.exe
2648	msdt.exe
2648	msdt.exe
2648	msdt.exe
2648	msdt.exe
2648	msdt.exe
2648	msdt.exe
2648	msdt.exe
2648	msdt.exe
2648	msdt.exe
2648	msdt.exe
2648	msdt.exe
2648	msdt.exe
2648	msdt.exe
2648	msdt.exe
2648	msdt.exe
2648	msdt.exe
2648	msdt.exe
2648	msdt.exe
2648	msdt.exe
2648	msdt.exe
2648	msdt.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
2872	wmplayer.exe
2872	wmplayer.exe
2872	wmplayer.exe
2648	msdt.exe
2648	msdt.exe
2648	msdt.exe
2648	msdt.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2676	powershell.exe
Token: SeDebugPrivilege	2872	wmplayer.exe
Token: SeShutdownPrivilege	1248	Explorer.EXE
Token: SeDebugPrivilege	2648	msdt.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
1248	Explorer.EXE

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 3044 wrote to memory of 2676	3044	z42ordemdecomprapdf.exe	31
PID 3044 wrote to memory of 2676	3044	z42ordemdecomprapdf.exe	31
PID 3044 wrote to memory of 2676	3044	z42ordemdecomprapdf.exe	31
PID 3044 wrote to memory of 2784	3044	z42ordemdecomprapdf.exe	33
PID 3044 wrote to memory of 2784	3044	z42ordemdecomprapdf.exe	33
PID 3044 wrote to memory of 2784	3044	z42ordemdecomprapdf.exe	33
PID 3044 wrote to memory of 2784	3044	z42ordemdecomprapdf.exe	33
PID 3044 wrote to memory of 2784	3044	z42ordemdecomprapdf.exe	33
PID 3044 wrote to memory of 2560	3044	z42ordemdecomprapdf.exe	34
PID 3044 wrote to memory of 2560	3044	z42ordemdecomprapdf.exe	34
PID 3044 wrote to memory of 2560	3044	z42ordemdecomprapdf.exe	34
PID 3044 wrote to memory of 2560	3044	z42ordemdecomprapdf.exe	34
PID 3044 wrote to memory of 3020	3044	z42ordemdecomprapdf.exe	35
PID 3044 wrote to memory of 3020	3044	z42ordemdecomprapdf.exe	35
PID 3044 wrote to memory of 3020	3044	z42ordemdecomprapdf.exe	35
PID 3044 wrote to memory of 3020	3044	z42ordemdecomprapdf.exe	35
PID 3044 wrote to memory of 2872	3044	z42ordemdecomprapdf.exe	36
PID 3044 wrote to memory of 2872	3044	z42ordemdecomprapdf.exe	36
PID 3044 wrote to memory of 2872	3044	z42ordemdecomprapdf.exe	36
PID 3044 wrote to memory of 2872	3044	z42ordemdecomprapdf.exe	36
PID 3044 wrote to memory of 2872	3044	z42ordemdecomprapdf.exe	36
PID 3044 wrote to memory of 2872	3044	z42ordemdecomprapdf.exe	36
PID 3044 wrote to memory of 2872	3044	z42ordemdecomprapdf.exe	36
PID 3044 wrote to memory of 2700	3044	z42ordemdecomprapdf.exe	37
PID 3044 wrote to memory of 2700	3044	z42ordemdecomprapdf.exe	37
PID 3044 wrote to memory of 2700	3044	z42ordemdecomprapdf.exe	37
PID 1248 wrote to memory of 2648	1248	Explorer.EXE	38
PID 1248 wrote to memory of 2648	1248	Explorer.EXE	38
PID 1248 wrote to memory of 2648	1248	Explorer.EXE	38
PID 1248 wrote to memory of 2648	1248	Explorer.EXE	38
PID 2648 wrote to memory of 1324	2648	msdt.exe	39
PID 2648 wrote to memory of 1324	2648	msdt.exe	39
PID 2648 wrote to memory of 1324	2648	msdt.exe	39
PID 2648 wrote to memory of 1324	2648	msdt.exe	39
PID 2648 wrote to memory of 1324	2648	msdt.exe	39

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	z42ordemdecomprapdf.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1248
- C:\Users\Admin\AppData\Local\Temp\z42ordemdecomprapdf.exe
  "C:\Users\Admin\AppData\Local\Temp\z42ordemdecomprapdf.exe"
  2⤵
  - UAC bypass
  - Checks whether UAC is enabled
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:3044
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\z42ordemdecomprapdf.exe" -Force
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2676
- - C:\Windows\regedit.exe
    "C:\Windows\regedit.exe"
    3⤵
    - Runs regedit.exe
    PID:2784
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
    3⤵
    PID:2560
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\ilasm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\ilasm.exe"
    3⤵
    PID:3020
- - C:\Program Files (x86)\Windows Media Player\wmplayer.exe
    "C:\Program Files (x86)\Windows Media Player\wmplayer.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2872
- - C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 3044 -s 872
    3⤵
    PID:2700
- C:\Windows\SysWOW64\msdt.exe
  "C:\Windows\SysWOW64\msdt.exe"
  2⤵
  - Adds policy Run key to start application
  - 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:2648
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1324

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

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\7P9NRRT0\7P9logim.jpeg

Filesize
88KB

MD5
adf80969272e8d85d0ef35f4be25c690

SHA1
c5342125b46561ca252255d0e1cbf7e6e31eb768

SHA256
12e308d2c12f2747ca500a7ba45f3c93229f312996dab7a09fd9d3ddc37dd3e6

SHA512
9c52c21d29fd425794936a107ab17673a7c11231680ba464856f8bf8a15913f94ddbdf47d98e777fe5c9ac00bd1ed606ce05b8ea0fc5c26b85987eb8b6541830

Download Submit
C:\Users\Admin\AppData\Roaming\7P9NRRT0\7P9logrf.ini

Filesize
40B

MD5
2f245469795b865bdd1b956c23d7893d

SHA1
6ad80b974d3808f5a20ea1e766c7d2f88b9e5895

SHA256
1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361

SHA512
909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f

Download Submit
C:\Users\Admin\AppData\Roaming\7P9NRRT0\7P9logri.ini

Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\7P9NRRT0\7P9logrv.ini

Filesize
40B

MD5
ba3b6bc807d4f76794c4b81b09bb9ba5

SHA1
24cb89501f0212ff3095ecc0aba97dd563718fb1

SHA256
6eebf968962745b2e9de2ca969af7c424916d4e3fe3cc0bb9b3d414abfce9507

SHA512
ecd07e601fc9e3cfc39addd7bd6f3d7f7ff3253afb40bf536e9eaac5a4c243e5ec40fbfd7b216cb0ea29f2517419601e335e33ba19dea4a46f65e38694d465bf

Download Submit
memory/1248-35-0x0000000007D20000-0x0000000007E95000-memory.dmp

Filesize
1.5MB

Download
memory/1248-22-0x0000000003F70000-0x0000000004070000-memory.dmp

Filesize
1024KB

Download
memory/2648-24-0x00000000000C0000-0x00000000000EF000-memory.dmp

Filesize
188KB

Download
memory/2648-23-0x0000000000EF0000-0x0000000000FE4000-memory.dmp

Filesize
976KB

Download
memory/2676-12-0x0000000002340000-0x00000000023C0000-memory.dmp

Filesize
512KB

Download
memory/2676-13-0x000000001B720000-0x000000001BA02000-memory.dmp

Filesize
2.9MB

Download
memory/2676-14-0x0000000001E20000-0x0000000001E28000-memory.dmp

Filesize
32KB

Download
memory/2784-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2784-4-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2872-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2872-20-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3044-30-0x000007FEF4EA3000-0x000007FEF4EA4000-memory.dmp

Filesize
4KB

Download
memory/3044-32-0x000007FEF4EA0000-0x000007FEF588C000-memory.dmp

Filesize
9.9MB

Download
memory/3044-0-0x000007FEF4EA3000-0x000007FEF4EA4000-memory.dmp

Filesize
4KB

Download
memory/3044-3-0x000000001A970000-0x000000001A9F6000-memory.dmp

Filesize
536KB

Download
memory/3044-2-0x000007FEF4EA0000-0x000007FEF588C000-memory.dmp

Filesize
9.9MB

Download
memory/3044-1-0x00000000008E0000-0x00000000008EA000-memory.dmp

Filesize
40KB

Download