formbook | 339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97

Analysis

max time kernel
149s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
15-01-2025 07:39

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General

Target

Bank CertificateFile00.exe
Size

742KB
MD5

318b9fba04abf5010446161aed881cc2
SHA1

996a0ddc988e5f64537c37c68646efb2d8dacc4c
SHA256

339c521fe6235de8b0b912c9fffcad6cc2eab721902ac095bafa510d68868c97
SHA512

b84ecef8d7eab0b4c21520046fb92a242f23e9069480482b81871f327a5173adbbc0cdd2ba2ede1ec3ecdb33d477c7f5c978d00d2c2bf05abd89cb04081af9c6
SSDEEP

12288:VQoJNhQ/cWS7stsLbolyisOq+BGJpqp5VKr6FAr0trGsVagoW:V3JN+UVsa/olrBGCDVa6FAqrGWe

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
behavioral2/memory/1772-46-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4784-93-0x0000000000D40000-0x0000000000D6F000-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
5004	powershell.exe
2456	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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	Bank CertificateFile00.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2728 set thread context of 1772	2728	Bank CertificateFile00.exe	102
PID 1772 set thread context of 3380	1772	RegSvcs.exe	56
PID 4784 set thread context of 3380	4784	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 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	Bank CertificateFile00.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wlanext.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
1676	schtasks.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
2728	Bank CertificateFile00.exe
2456	powershell.exe
5004	powershell.exe
2728	Bank CertificateFile00.exe
2456	powershell.exe
5004	powershell.exe
1772	RegSvcs.exe
1772	RegSvcs.exe
1772	RegSvcs.exe
1772	RegSvcs.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe
4784	wlanext.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1772	RegSvcs.exe
1772	RegSvcs.exe
1772	RegSvcs.exe
4784	wlanext.exe
4784	wlanext.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

description	pid	Process
Token: SeDebugPrivilege	2728	Bank CertificateFile00.exe
Token: SeDebugPrivilege	5004	powershell.exe
Token: SeDebugPrivilege	2456	powershell.exe
Token: SeDebugPrivilege	1772	RegSvcs.exe
Token: SeShutdownPrivilege	3380	Explorer.EXE
Token: SeCreatePagefilePrivilege	3380	Explorer.EXE
Token: SeDebugPrivilege	4784	wlanext.exe
Token: SeShutdownPrivilege	3380	Explorer.EXE
Token: SeCreatePagefilePrivilege	3380	Explorer.EXE
Token: SeShutdownPrivilege	3380	Explorer.EXE
Token: SeCreatePagefilePrivilege	3380	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2728 wrote to memory of 5004	2728	Bank CertificateFile00.exe	96
PID 2728 wrote to memory of 5004	2728	Bank CertificateFile00.exe	96
PID 2728 wrote to memory of 5004	2728	Bank CertificateFile00.exe	96
PID 2728 wrote to memory of 2456	2728	Bank CertificateFile00.exe	98
PID 2728 wrote to memory of 2456	2728	Bank CertificateFile00.exe	98
PID 2728 wrote to memory of 2456	2728	Bank CertificateFile00.exe	98
PID 2728 wrote to memory of 1676	2728	Bank CertificateFile00.exe	100
PID 2728 wrote to memory of 1676	2728	Bank CertificateFile00.exe	100
PID 2728 wrote to memory of 1676	2728	Bank CertificateFile00.exe	100
PID 2728 wrote to memory of 1772	2728	Bank CertificateFile00.exe	102
PID 2728 wrote to memory of 1772	2728	Bank CertificateFile00.exe	102
PID 2728 wrote to memory of 1772	2728	Bank CertificateFile00.exe	102
PID 2728 wrote to memory of 1772	2728	Bank CertificateFile00.exe	102
PID 2728 wrote to memory of 1772	2728	Bank CertificateFile00.exe	102
PID 2728 wrote to memory of 1772	2728	Bank CertificateFile00.exe	102
PID 3380 wrote to memory of 4784	3380	Explorer.EXE	103
PID 3380 wrote to memory of 4784	3380	Explorer.EXE	103
PID 3380 wrote to memory of 4784	3380	Explorer.EXE	103
PID 4784 wrote to memory of 4360	4784	wlanext.exe	104
PID 4784 wrote to memory of 4360	4784	wlanext.exe	104
PID 4784 wrote to memory of 4360	4784	wlanext.exe	104

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3380
- C:\Users\Admin\AppData\Local\Temp\Bank CertificateFile00.exe
  "C:\Users\Admin\AppData\Local\Temp\Bank CertificateFile00.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:2728
- - 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\Bank CertificateFile00.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:5004
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\iWxVkVDQYvd.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2456
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\iWxVkVDQYvd" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC6F9.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1676
- - 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:1772
- C:\Windows\SysWOW64\wlanext.exe
  "C:\Windows\SysWOW64\wlanext.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:4784
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4360

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

Query Registry

T1012

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\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
3d086a433708053f9bf9523e1d87a4e8

SHA1
b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

SHA256
6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

SHA512
931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
58cc1ac788f7db36234486e9afe4bd93

SHA1
24c9bd6e5bf70126ab1533b0265be939a75e72b7

SHA256
30880665034ee5dcb3cdcffa0d62e7521aa32e40060d33ee01d73841fce01dd8

SHA512
e2a8da13d7a104dddd0d379f9b7f60b87da15fc627f2c6f2bd52c922136797cdc90d79a4a8863532f23603f02f13939eda861221a5537a1e217ed12eefd69338

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gc5i2ijh.c0t.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC6F9.tmp

Filesize
1KB

MD5
f28586aff4d3f7297263eb9e7fdffea0

SHA1
4cd1bc73b584da24495acc0334f5c8ab221cae66

SHA256
9d86163188076b7e037bbfa7d422af230bdc902c4c648ea0d5bdb6bc1b927867

SHA512
2b1157158acf40fc7b0aa178e4b0a7baf3099f0d65d04b777862d4a903bae8647053c9cd3c85e0e7f17c7196cc0fc001ed17d3ee6ab421217515a94e8e255015

Download Submit
memory/1772-46-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2456-77-0x0000000007330000-0x000000000733A000-memory.dmp

Filesize
40KB

Download
memory/2456-25-0x0000000005780000-0x00000000057E6000-memory.dmp

Filesize
408KB

Download
memory/2456-76-0x00000000072C0000-0x00000000072DA000-memory.dmp

Filesize
104KB

Download
memory/2456-34-0x0000000074F10000-0x00000000756C0000-memory.dmp

Filesize
7.7MB

Download
memory/2456-48-0x00000000064F0000-0x000000000653C000-memory.dmp

Filesize
304KB

Download
memory/2456-45-0x0000000005A70000-0x0000000005DC4000-memory.dmp

Filesize
3.3MB

Download
memory/2456-35-0x0000000074F10000-0x00000000756C0000-memory.dmp

Filesize
7.7MB

Download
memory/2456-64-0x0000000070260000-0x00000000702AC000-memory.dmp

Filesize
304KB

Download
memory/2456-47-0x0000000005F80000-0x0000000005F9E000-memory.dmp

Filesize
120KB

Download
memory/2456-22-0x0000000005710000-0x0000000005776000-memory.dmp

Filesize
408KB

Download
memory/2456-88-0x0000000074F10000-0x00000000756C0000-memory.dmp

Filesize
7.7MB

Download
memory/2456-20-0x0000000074F10000-0x00000000756C0000-memory.dmp

Filesize
7.7MB

Download
memory/2456-80-0x0000000007540000-0x00000000075D6000-memory.dmp

Filesize
600KB

Download
memory/2728-51-0x0000000074F10000-0x00000000756C0000-memory.dmp

Filesize
7.7MB

Download
memory/2728-5-0x0000000074F10000-0x00000000756C0000-memory.dmp

Filesize
7.7MB

Download
memory/2728-2-0x0000000004FA0000-0x0000000005544000-memory.dmp

Filesize
5.6MB

Download
memory/2728-1-0x0000000000090000-0x0000000000150000-memory.dmp

Filesize
768KB

Download
memory/2728-4-0x0000000004BB0000-0x0000000004BBA000-memory.dmp

Filesize
40KB

Download
memory/2728-10-0x000000000AA00000-0x000000000AA9C000-memory.dmp

Filesize
624KB

Download
memory/2728-3-0x0000000004AE0000-0x0000000004B72000-memory.dmp

Filesize
584KB

Download
memory/2728-9-0x00000000044D0000-0x0000000004548000-memory.dmp

Filesize
480KB

Download
memory/2728-0-0x0000000074F1E000-0x0000000074F1F000-memory.dmp

Filesize
4KB

Download
memory/2728-6-0x0000000005EE0000-0x0000000005F06000-memory.dmp

Filesize
152KB

Download
memory/2728-8-0x0000000074F10000-0x00000000756C0000-memory.dmp

Filesize
7.7MB

Download
memory/2728-7-0x0000000074F1E000-0x0000000074F1F000-memory.dmp

Filesize
4KB

Download
memory/3380-98-0x00000000084F0000-0x000000000865D000-memory.dmp

Filesize
1.4MB

Download
memory/4784-93-0x0000000000D40000-0x0000000000D6F000-memory.dmp

Filesize
188KB

Download
memory/4784-79-0x0000000000ED0000-0x0000000000EE7000-memory.dmp

Filesize
92KB

Download
memory/4784-78-0x0000000000ED0000-0x0000000000EE7000-memory.dmp

Filesize
92KB

Download
memory/5004-81-0x0000000007AA0000-0x0000000007AB1000-memory.dmp

Filesize
68KB

Download
memory/5004-84-0x0000000007BE0000-0x0000000007BFA000-memory.dmp

Filesize
104KB

Download
memory/5004-52-0x00000000074F0000-0x0000000007522000-memory.dmp

Filesize
200KB

Download
memory/5004-75-0x0000000007EE0000-0x000000000855A000-memory.dmp

Filesize
6.5MB

Download
memory/5004-74-0x0000000007570000-0x0000000007613000-memory.dmp

Filesize
652KB

Download
memory/5004-21-0x0000000005DE0000-0x0000000005E02000-memory.dmp

Filesize
136KB

Download
memory/5004-63-0x0000000007550000-0x000000000756E000-memory.dmp

Filesize
120KB

Download
memory/5004-82-0x0000000007AD0000-0x0000000007ADE000-memory.dmp

Filesize
56KB

Download
memory/5004-83-0x0000000007AE0000-0x0000000007AF4000-memory.dmp

Filesize
80KB

Download
memory/5004-53-0x0000000070260000-0x00000000702AC000-memory.dmp

Filesize
304KB

Download
memory/5004-85-0x0000000007BC0000-0x0000000007BC8000-memory.dmp

Filesize
32KB

Download
memory/5004-19-0x0000000074F10000-0x00000000756C0000-memory.dmp

Filesize
7.7MB

Download
memory/5004-18-0x0000000074F10000-0x00000000756C0000-memory.dmp

Filesize
7.7MB

Download
memory/5004-17-0x0000000005770000-0x0000000005D98000-memory.dmp

Filesize
6.2MB

Download
memory/5004-92-0x0000000074F10000-0x00000000756C0000-memory.dmp

Filesize
7.7MB

Download
memory/5004-16-0x0000000074F10000-0x00000000756C0000-memory.dmp

Filesize
7.7MB

Download
memory/5004-15-0x0000000002C90000-0x0000000002CC6000-memory.dmp

Filesize
216KB

Download