formbook | bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b

Analysis

max time kernel
147s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13-01-2025 14:26

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General

Target

Invoice and packing list.exe
Size

836KB
MD5

735a274389af85c4b4f6ccd684b1b30a
SHA1

2ae6619febb0c9f4d318daa9f28172c2ed9ed4da
SHA256

bcfeb4ec31e731899a0ddd0a608aa7ecbfbdbf37f4ac3810b275ba6905a1969b
SHA512

959bd09b752128ae08262bc7803b857099e3727f025f380a918f5b46ac64384180224ef40cc086c795f54dbb8621798b3ba95362805bccbc634800fc626bf14a
SSDEEP

24576:C8yNK1t4NK1tOqLB94uH/Stkd3uRStXvfFQ:Rhz9fvj

Score

10^/10

formbook a03d discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

a03d

Decoy

nfluencer-marketing-13524.bond

cebepu.info

lphatechblog.xyz

haoyun.website

itiz.xyz

orld-visa-center.online

si.art

alata.xyz

mmarketing.xyz

elnqdjc.shop

ensentoto.cloud

voyagu.info

onvert.today

1fuli9902.shop

otelhafnia.info

rumpchiefofstaff.store

urvivalflashlights.shop

0090.pizza

ings-hu-13.today

oliticalpatriot.net

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2500-24-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2500-27-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2824-29-0x0000000000080000-0x00000000000AF000-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
2252	powershell.exe
2616	powershell.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1284 set thread context of 2500	1284	Invoice and packing list.exe	34
PID 2500 set thread context of 1216	2500	MSBuild.exe	21
PID 2500 set thread context of 1216	2500	MSBuild.exe	21
PID 2824 set thread context of 1216	2824	NAPSTAT.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 6 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	NAPSTAT.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Invoice and packing list.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
2696	schtasks.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
1284	Invoice and packing list.exe
2252	powershell.exe
2616	powershell.exe
1284	Invoice and packing list.exe
2500	MSBuild.exe
2500	MSBuild.exe
2500	MSBuild.exe
2824	NAPSTAT.EXE
2824	NAPSTAT.EXE
2824	NAPSTAT.EXE
2824	NAPSTAT.EXE
2824	NAPSTAT.EXE
2824	NAPSTAT.EXE
2824	NAPSTAT.EXE
2824	NAPSTAT.EXE
2824	NAPSTAT.EXE
2824	NAPSTAT.EXE
2824	NAPSTAT.EXE
2824	NAPSTAT.EXE
2824	NAPSTAT.EXE
2824	NAPSTAT.EXE
2824	NAPSTAT.EXE
2824	NAPSTAT.EXE
2824	NAPSTAT.EXE
2824	NAPSTAT.EXE
2824	NAPSTAT.EXE
2824	NAPSTAT.EXE
2824	NAPSTAT.EXE
2824	NAPSTAT.EXE
2824	NAPSTAT.EXE
2824	NAPSTAT.EXE
2824	NAPSTAT.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2500	MSBuild.exe
2500	MSBuild.exe
2500	MSBuild.exe
2500	MSBuild.exe
2824	NAPSTAT.EXE
2824	NAPSTAT.EXE

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1284	Invoice and packing list.exe
Token: SeDebugPrivilege	2252	powershell.exe
Token: SeDebugPrivilege	2616	powershell.exe
Token: SeDebugPrivilege	2500	MSBuild.exe
Token: SeDebugPrivilege	2824	NAPSTAT.EXE

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1284 wrote to memory of 2252	1284	Invoice and packing list.exe	28
PID 1284 wrote to memory of 2252	1284	Invoice and packing list.exe	28
PID 1284 wrote to memory of 2252	1284	Invoice and packing list.exe	28
PID 1284 wrote to memory of 2252	1284	Invoice and packing list.exe	28
PID 1284 wrote to memory of 2616	1284	Invoice and packing list.exe	30
PID 1284 wrote to memory of 2616	1284	Invoice and packing list.exe	30
PID 1284 wrote to memory of 2616	1284	Invoice and packing list.exe	30
PID 1284 wrote to memory of 2616	1284	Invoice and packing list.exe	30
PID 1284 wrote to memory of 2696	1284	Invoice and packing list.exe	31
PID 1284 wrote to memory of 2696	1284	Invoice and packing list.exe	31
PID 1284 wrote to memory of 2696	1284	Invoice and packing list.exe	31
PID 1284 wrote to memory of 2696	1284	Invoice and packing list.exe	31
PID 1284 wrote to memory of 2500	1284	Invoice and packing list.exe	34
PID 1284 wrote to memory of 2500	1284	Invoice and packing list.exe	34
PID 1284 wrote to memory of 2500	1284	Invoice and packing list.exe	34
PID 1284 wrote to memory of 2500	1284	Invoice and packing list.exe	34
PID 1284 wrote to memory of 2500	1284	Invoice and packing list.exe	34
PID 1284 wrote to memory of 2500	1284	Invoice and packing list.exe	34
PID 1284 wrote to memory of 2500	1284	Invoice and packing list.exe	34
PID 1216 wrote to memory of 2824	1216	Explorer.EXE	37
PID 1216 wrote to memory of 2824	1216	Explorer.EXE	37
PID 1216 wrote to memory of 2824	1216	Explorer.EXE	37
PID 1216 wrote to memory of 2824	1216	Explorer.EXE	37
PID 2824 wrote to memory of 2804	2824	NAPSTAT.EXE	38
PID 2824 wrote to memory of 2804	2824	NAPSTAT.EXE	38
PID 2824 wrote to memory of 2804	2824	NAPSTAT.EXE	38
PID 2824 wrote to memory of 2804	2824	NAPSTAT.EXE	38

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1216
- C:\Users\Admin\AppData\Local\Temp\Invoice and packing list.exe
  "C:\Users\Admin\AppData\Local\Temp\Invoice and packing list.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1284
- - 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\Invoice and packing list.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2252
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\utlAHqvw.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2616
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\utlAHqvw" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB53B.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2696
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2500
- C:\Windows\SysWOW64\NAPSTAT.EXE
  "C:\Windows\SysWOW64\NAPSTAT.EXE"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2824
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2804

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

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\Local\Temp\tmpB53B.tmp

Filesize
1KB

MD5
8bd9cf57d55c8f487dfad1d3114c8439

SHA1
cc6608861d42d2d000468fabb7b6540cd484754e

SHA256
98e63f76349049060c4aa59be25572b17be01aa3191386da0c867930b216741a

SHA512
5c1668f4975db949c4df60d8296e0d48e1cd505fbea9998365564566f21302de909c067c7cde57642f15ff7931a929608d995508da976cfadd16a683e63f3786

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

Filesize
7KB

MD5
32a3da2379309129588e5b53b07eba4a

SHA1
04d13933e857ff03dcf432990859efc9e549eb9c

SHA256
47390c5d3d13215b97bc6f6ae007f46beb61f7d2ad00068ddcd54e5be71f7ef8

SHA512
f77e01f2fef941c52e21dd461c7057f70a25189d35d40b629fc6a1752ac78bff8c5aa36774181d4da42447ae7f25fd4be7938a8d7235f97def24deb87dce4596

Download Submit
memory/1284-4-0x00000000742EE000-0x00000000742EF000-memory.dmp

Filesize
4KB

Download
memory/1284-25-0x00000000742E0000-0x00000000749CE000-memory.dmp

Filesize
6.9MB

Download
memory/1284-0-0x00000000742EE000-0x00000000742EF000-memory.dmp

Filesize
4KB

Download
memory/1284-5-0x00000000742E0000-0x00000000749CE000-memory.dmp

Filesize
6.9MB

Download
memory/1284-6-0x00000000054F0000-0x000000000556A000-memory.dmp

Filesize
488KB

Download
memory/1284-2-0x00000000742E0000-0x00000000749CE000-memory.dmp

Filesize
6.9MB

Download
memory/1284-1-0x0000000000090000-0x0000000000168000-memory.dmp

Filesize
864KB

Download
memory/1284-3-0x00000000006A0000-0x00000000006BA000-memory.dmp

Filesize
104KB

Download
memory/2500-20-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2500-23-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2500-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2500-24-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2500-27-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2824-28-0x0000000000300000-0x0000000000346000-memory.dmp

Filesize
280KB

Download
memory/2824-29-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download