formbook | 28a65019d2736dd82fdb229c9e6f5ff053c25e095d118ae03359238f44ba22d7

General

Target

updated order00pdf.exe
Size

694KB
MD5

3eb2ceb99c3ef6893ace27ea06be4cfa
SHA1

c0d1da3207d947f99c1809cf94055adbdde7c3d7
SHA256

28a65019d2736dd82fdb229c9e6f5ff053c25e095d118ae03359238f44ba22d7
SHA512

6e9d570a4e5e20a2d0acd3fd4beebc872238e99aec72a747b3aec809c46f4a26dd651d39be69026f4d061a66d515e131ae830e663104d688fb0841f2b4fe4158
SSDEEP

12288:eQFtq5Aai1/mnTesWGrzVXxBEgqO/kCerVYuVH3Uv2Hd9:eMq5Aai10mMzJkjxD2sd9

Score

10^/10

formbook a02d discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

a02d

Decoy

coplus.market

oofing-jobs-74429.bond

healchemists.xyz

oofcarpenternearme-jp.xyz

enewebsolutions.online

harepoint.legal

88977.club

omptables.xyz

eat-pumps-31610.bond

endown.graphics

amsexgirls.website

ovevibes.xyz

u-thiensu.online

yblinds.xyz

rumpchiefofstaff.store

erzog.fun

rrm.lat

agiclime.pro

agaviet59.shop

lbdoanhnhan.net

Signatures

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

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral1/memory/392-24-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/392-28-0x0000000000400000-0x000000000042F000-memory.dmp	formbook

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2876	powershell.exe
2800	powershell.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1680 set thread context of 392	1680	updated order00pdf.exe	36
PID 392 set thread context of 1280	392	RegSvcs.exe	21
PID 392 set thread context of 1280	392	RegSvcs.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 4 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	updated order00pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2716	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
1680	updated order00pdf.exe
1680	updated order00pdf.exe
392	RegSvcs.exe
392	RegSvcs.exe
2800	powershell.exe
2876	powershell.exe
392	RegSvcs.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
392	RegSvcs.exe
392	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1680	updated order00pdf.exe
Token: SeDebugPrivilege	392	RegSvcs.exe
Token: SeDebugPrivilege	2800	powershell.exe
Token: SeDebugPrivilege	2876	powershell.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 1680 wrote to memory of 2876	1680	updated order00pdf.exe	30
PID 1680 wrote to memory of 2876	1680	updated order00pdf.exe	30
PID 1680 wrote to memory of 2876	1680	updated order00pdf.exe	30
PID 1680 wrote to memory of 2876	1680	updated order00pdf.exe	30
PID 1680 wrote to memory of 2800	1680	updated order00pdf.exe	32
PID 1680 wrote to memory of 2800	1680	updated order00pdf.exe	32
PID 1680 wrote to memory of 2800	1680	updated order00pdf.exe	32
PID 1680 wrote to memory of 2800	1680	updated order00pdf.exe	32
PID 1680 wrote to memory of 2716	1680	updated order00pdf.exe	34
PID 1680 wrote to memory of 2716	1680	updated order00pdf.exe	34
PID 1680 wrote to memory of 2716	1680	updated order00pdf.exe	34
PID 1680 wrote to memory of 2716	1680	updated order00pdf.exe	34
PID 1680 wrote to memory of 392	1680	updated order00pdf.exe	36
PID 1680 wrote to memory of 392	1680	updated order00pdf.exe	36
PID 1680 wrote to memory of 392	1680	updated order00pdf.exe	36
PID 1680 wrote to memory of 392	1680	updated order00pdf.exe	36
PID 1680 wrote to memory of 392	1680	updated order00pdf.exe	36
PID 1680 wrote to memory of 392	1680	updated order00pdf.exe	36
PID 1680 wrote to memory of 392	1680	updated order00pdf.exe	36
PID 1680 wrote to memory of 392	1680	updated order00pdf.exe	36
PID 1680 wrote to memory of 392	1680	updated order00pdf.exe	36
PID 1680 wrote to memory of 392	1680	updated order00pdf.exe	36

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1280
- C:\Users\Admin\AppData\Local\Temp\updated order00pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\updated order00pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1680
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\updated order00pdf.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2876
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\dVNcpHUEH.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2800
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dVNcpHUEH" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA026.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2716
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:392
  - - C:\Windows\SysWOW64\autoconv.exe
      "C:\Windows\SysWOW64\autoconv.exe"
      4⤵
      PID:2372

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpA026.tmp

Filesize
1KB

MD5
2c6216a0d0966bd2816724ae74831022

SHA1
61db3944eb988cf1564a0be20c7c3d04f02d5bef

SHA256
0e8756b09f3f46354df854db509ecacd98c9cc03ebf8d5494667231542005763

SHA512
07c22a561d0848c71a38c7705231384c008cf693e253d96e11c8a80a7be733f5861a794ba75f57e67b95992b56644a610739a49d7fc48728014025012109f77a

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
04be1b8c5244dba2bc70d7e7647ace3d

SHA1
1af8503a5e053103cd7c7b9d9f5a1ad9510509db

SHA256
47ad7c92bc9adbe0baa11291c318f3f4c3756f787731527077d94514bccb6342

SHA512
684247fe01de80ea0c5a336102a7bb7cc0cca1bee40e0e634c67d9741a8c383f0d643036475c75cd6a644b07330cde23ca405880dde3dfb11f832aca2abbfaa0

Download Submit
memory/392-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/392-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/392-28-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/392-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/392-24-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1280-29-0x0000000006BB0000-0x0000000006CD9000-memory.dmp

Filesize
1.2MB

Download
memory/1280-27-0x00000000002A0000-0x00000000003A0000-memory.dmp

Filesize
1024KB

Download
memory/1680-6-0x0000000004320000-0x000000000439A000-memory.dmp

Filesize
488KB

Download
memory/1680-1-0x0000000000B40000-0x0000000000BF4000-memory.dmp

Filesize
720KB

Download
memory/1680-2-0x0000000073F60000-0x000000007464E000-memory.dmp

Filesize
6.9MB

Download
memory/1680-0-0x0000000073F6E000-0x0000000073F6F000-memory.dmp

Filesize
4KB

Download
memory/1680-25-0x0000000073F60000-0x000000007464E000-memory.dmp

Filesize
6.9MB

Download
memory/1680-3-0x0000000000570000-0x000000000058E000-memory.dmp

Filesize
120KB

Download
memory/1680-5-0x0000000073F60000-0x000000007464E000-memory.dmp

Filesize
6.9MB

Download
memory/1680-4-0x0000000073F6E000-0x0000000073F6F000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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