formbook | 166fbb921baab1b4280ae9d35aaf9664febccce0029eed19cbecfde83d98e0c2

Analysis

max time kernel
149s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-12-2024 00:44

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General

Target

5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe
Size

519KB
MD5

ac506b9b66dfac14f67ca92c679d85bd
SHA1

bb39da67bac5c77002c3d88e80888786fcd83acd
SHA256

5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00
SHA512

0a92d007ae6331fd4b9fc8f037b9581fb051ba63fefe0b8f1f74f799885875597b53a579e0c6e7273e336b7de3197c3d4ca92ddce3c45bddde25ebb529464834
SSDEEP

12288:yybs6xoSoNgO7lTPf5aJgGkwuV49WXnX8kp07kyLL1XXMQ+/8+:FNxY3aNkwuV4OqoyLJnMi

Score

10^/10

formbook cfvc discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

cfvc

Decoy

qFcyI8OAPHKap6ubfQ==

NuOCNnr/zOqy1xM5AN4=

CnHfypZMLKQKgKaaVw4J1g==

9WpDFnsiwEyoFko7+GYiyo55

zUKhZPi3f21+ux+L

vqqeiTTPlz+cnQaD

GLGZh9zop+UvsCtBEm9x

eCUGyUEAe9hmj8KgaA==

EvXUn0s63zJyoxQfCGQmMZRu

kVy6iO/FuRGD/A==

+tg0M82KQk7fX4XXoYIluHMEFhbrzMk=

hP/nqutI9DR+0mBnYA==

cwrq1kLJd9QzqtQq9QCc7hHV9FjjKSvU

eE6vlcLHxAHZ7g==

vpKQL84+30y4SZpU/Ox5

vbfnlWZmAj1aVbCdbA==

UNQwEfT8tzbiL3J2Wrjm3g==

02LLqYRY9SeDIHwK5pFjYrg=

PhkLzj8IuT6R7v3lxlBYwqO69HReqnrF

mkYwC5lsF6cDS6RU/Ox5

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Formbook family
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
3332	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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2000 set thread context of 3404	2000	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	105
PID 3404 set thread context of 3440	3404	RegSvcs.exe	56
PID 2468 set thread context of 3440	2468	wlanext.exe	56

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	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wlanext.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	wlanext.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
1872	schtasks.exe

Suspicious behavior: EnumeratesProcesses 50 IoCs

pid	Process
2000	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe
3332	powershell.exe
2000	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe
3404	RegSvcs.exe
3404	RegSvcs.exe
3404	RegSvcs.exe
3404	RegSvcs.exe
3404	RegSvcs.exe
3404	RegSvcs.exe
3404	RegSvcs.exe
3404	RegSvcs.exe
3332	powershell.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
3404	RegSvcs.exe
3404	RegSvcs.exe
3404	RegSvcs.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe
2468	wlanext.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2000	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe
Token: SeDebugPrivilege	3332	powershell.exe
Token: SeDebugPrivilege	3404	RegSvcs.exe
Token: SeShutdownPrivilege	3440	Explorer.EXE
Token: SeCreatePagefilePrivilege	3440	Explorer.EXE
Token: SeDebugPrivilege	2468	wlanext.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2000 wrote to memory of 3332	2000	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	101
PID 2000 wrote to memory of 3332	2000	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	101
PID 2000 wrote to memory of 3332	2000	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	101
PID 2000 wrote to memory of 1872	2000	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	103
PID 2000 wrote to memory of 1872	2000	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	103
PID 2000 wrote to memory of 1872	2000	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	103
PID 2000 wrote to memory of 3404	2000	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	105
PID 2000 wrote to memory of 3404	2000	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	105
PID 2000 wrote to memory of 3404	2000	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	105
PID 2000 wrote to memory of 3404	2000	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	105
PID 2000 wrote to memory of 3404	2000	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	105
PID 2000 wrote to memory of 3404	2000	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	105
PID 3440 wrote to memory of 2468	3440	Explorer.EXE	106
PID 3440 wrote to memory of 2468	3440	Explorer.EXE	106
PID 3440 wrote to memory of 2468	3440	Explorer.EXE	106
PID 2468 wrote to memory of 4092	2468	wlanext.exe	108
PID 2468 wrote to memory of 4092	2468	wlanext.exe	108
PID 2468 wrote to memory of 4092	2468	wlanext.exe	108

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3440
- C:\Users\Admin\AppData\Local\Temp\5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe
  "C:\Users\Admin\AppData\Local\Temp\5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2000
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\hwFkBCJyqs.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3332
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hwFkBCJyqs" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6741.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1872
- - 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:3404
- C:\Windows\SysWOW64\wlanext.exe
  "C:\Windows\SysWOW64\wlanext.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:2468
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:4092

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

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ikfavvfn.el4.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp6741.tmp

Filesize
1KB

MD5
c41b1248e1394d39ee360d5395ccaad0

SHA1
3bcb1bca0b594eff64ae2f473d463019bc4f561b

SHA256
b71169c426b0db0c5855c7b0d14ff6d30bd501e1c2d1f02c84ddcb05285dcdc4

SHA512
e4876562ff14cc6deab7bc8f3f7e4512d4a926ac526ee806330ad73020669bbd7cec596426aea8859bfad86dd8c285924caa3b982bb9bf06486a6a1ec4061659

Download Submit
memory/2000-8-0x00000000744A0000-0x0000000074C50000-memory.dmp

Filesize
7.7MB

Download
memory/2000-11-0x0000000006F50000-0x0000000006FEC000-memory.dmp

Filesize
624KB

Download
memory/2000-4-0x0000000005720000-0x000000000572A000-memory.dmp

Filesize
40KB

Download
memory/2000-5-0x00000000744A0000-0x0000000074C50000-memory.dmp

Filesize
7.7MB

Download
memory/2000-6-0x0000000006A00000-0x0000000006A18000-memory.dmp

Filesize
96KB

Download
memory/2000-7-0x00000000744AE000-0x00000000744AF000-memory.dmp

Filesize
4KB

Download
memory/2000-2-0x0000000005D50000-0x00000000062F4000-memory.dmp

Filesize
5.6MB

Download
memory/2000-9-0x0000000005D40000-0x0000000005D4C000-memory.dmp

Filesize
48KB

Download
memory/2000-10-0x0000000006E30000-0x0000000006EA0000-memory.dmp

Filesize
448KB

Download
memory/2000-3-0x00000000057A0000-0x0000000005832000-memory.dmp

Filesize
584KB

Download
memory/2000-25-0x0000000007380000-0x00000000073B4000-memory.dmp

Filesize
208KB

Download
memory/2000-40-0x00000000744A0000-0x0000000074C50000-memory.dmp

Filesize
7.7MB

Download
memory/2000-1-0x0000000000CB0000-0x0000000000D38000-memory.dmp

Filesize
544KB

Download
memory/2000-0-0x00000000744AE000-0x00000000744AF000-memory.dmp

Filesize
4KB

Download
memory/2468-79-0x0000000000E40000-0x0000000000E57000-memory.dmp

Filesize
92KB

Download
memory/2468-78-0x0000000000E40000-0x0000000000E57000-memory.dmp

Filesize
92KB

Download
memory/2468-80-0x0000000001250000-0x000000000127D000-memory.dmp

Filesize
180KB

Download
memory/3332-67-0x0000000006E70000-0x0000000006E8A000-memory.dmp

Filesize
104KB

Download
memory/3332-65-0x00000000744A0000-0x0000000074C50000-memory.dmp

Filesize
7.7MB

Download
memory/3332-16-0x00000000045B0000-0x00000000045E6000-memory.dmp

Filesize
216KB

Download
memory/3332-21-0x0000000004C90000-0x0000000004CB2000-memory.dmp

Filesize
136KB

Download
memory/3332-17-0x00000000744A0000-0x0000000074C50000-memory.dmp

Filesize
7.7MB

Download
memory/3332-24-0x00000000744A0000-0x0000000074C50000-memory.dmp

Filesize
7.7MB

Download
memory/3332-18-0x0000000004CD0000-0x00000000052F8000-memory.dmp

Filesize
6.2MB

Download
memory/3332-77-0x00000000744A0000-0x0000000074C50000-memory.dmp

Filesize
7.7MB

Download
memory/3332-74-0x0000000007190000-0x0000000007198000-memory.dmp

Filesize
32KB

Download
memory/3332-73-0x00000000071B0000-0x00000000071CA000-memory.dmp

Filesize
104KB

Download
memory/3332-23-0x0000000005510000-0x0000000005576000-memory.dmp

Filesize
408KB

Download
memory/3332-22-0x00000000053F0000-0x0000000005456000-memory.dmp

Filesize
408KB

Download
memory/3332-46-0x0000000005B50000-0x0000000005B6E000-memory.dmp

Filesize
120KB

Download
memory/3332-47-0x0000000005BE0000-0x0000000005C2C000-memory.dmp

Filesize
304KB

Download
memory/3332-48-0x000000007F2A0000-0x000000007F2B0000-memory.dmp

Filesize
64KB

Download
memory/3332-49-0x0000000006100000-0x0000000006132000-memory.dmp

Filesize
200KB

Download
memory/3332-60-0x0000000006170000-0x000000000618E000-memory.dmp

Filesize
120KB

Download
memory/3332-50-0x0000000074D30000-0x0000000074D7C000-memory.dmp

Filesize
304KB

Download
memory/3332-62-0x0000000006D40000-0x0000000006DE3000-memory.dmp

Filesize
652KB

Download
memory/3332-34-0x0000000005580000-0x00000000058D4000-memory.dmp

Filesize
3.3MB

Download
memory/3332-64-0x0000000004690000-0x00000000046A0000-memory.dmp

Filesize
64KB

Download
memory/3332-63-0x0000000004690000-0x00000000046A0000-memory.dmp

Filesize
64KB

Download
memory/3332-61-0x00000000744A0000-0x0000000074C50000-memory.dmp

Filesize
7.7MB

Download
memory/3332-19-0x00000000744A0000-0x0000000074C50000-memory.dmp

Filesize
7.7MB

Download
memory/3332-66-0x00000000074B0000-0x0000000007B2A000-memory.dmp

Filesize
6.5MB

Download
memory/3332-68-0x0000000006EE0000-0x0000000006EEA000-memory.dmp

Filesize
40KB

Download
memory/3332-69-0x00000000070F0000-0x0000000007186000-memory.dmp

Filesize
600KB

Download
memory/3332-70-0x0000000007070000-0x0000000007081000-memory.dmp

Filesize
68KB

Download
memory/3332-71-0x00000000070A0000-0x00000000070AE000-memory.dmp

Filesize
56KB

Download
memory/3332-72-0x00000000070B0000-0x00000000070C4000-memory.dmp

Filesize
80KB

Download
memory/3404-43-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3404-44-0x0000000000C40000-0x0000000000C50000-memory.dmp

Filesize
64KB

Download
memory/3404-41-0x0000000001190000-0x00000000014DA000-memory.dmp

Filesize
3.3MB

Download
memory/3404-28-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3404-26-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3440-45-0x0000000008340000-0x00000000084D6000-memory.dmp

Filesize
1.6MB

Download
memory/3440-81-0x0000000008340000-0x00000000084D6000-memory.dmp

Filesize
1.6MB

Download
memory/3440-85-0x0000000003130000-0x000000000321F000-memory.dmp

Filesize
956KB

Download