formbook | fdcd11dcd6a96d4ddfefaef7a186277e84c147fa7e33c0994b2deb384e8d0487

Analysis

max time kernel
147s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
25/03/2025, 21:10

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General

Target

AWB_Ref509428922pdf.exe
Size

633KB
MD5

573c3aa20cab92c93663f0e475323557
SHA1

647598a3a90b23787b83f0c23ba26a8b4b779592
SHA256

9ebea5ecb5f86bccf0564f563a35665876e5bcb1b66285a19965af5f24534b4a
SHA512

06fbf4dfea02ac62c81c9e47581d779891e2da9113ed45f349af2e4c52b86da9701a807872a5cfc059c5553de63bab3a24953a06a63d82cf8bf877c3dc538694
SSDEEP

6144:WTTzzJeyp1RnC7HJnIApeX9vLSaXmWFiB3WOk6f7h9WgFER0u+GIIIIIIIhIIIIw:GTzNeypHnC7HdeXZEWFTOk6fmBm5GV

Score

10^/10

formbook gt23 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

gt23

Decoy

awkeyesunspotsunfire.top

valbardrc.store

idadari29nice.makeup

haymu.shop

hybf2025.sbs

obbiny.xyz

dlecore.xyz

rabbeat.live

irelily.vip

oahnyn.shop

om-massfadq.top

lizalyn.work

irlo.shop

hostsolver.store

ylastpics.info

adfgt.xyz

cis.club

iskol.fun

riceflashradarlab.xyz

enovhojecnhi.shop

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
behavioral2/memory/5540-0-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/5540-3-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4080-8-0x0000000000930000-0x000000000095F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2968 set thread context of 5540	2968	AWB_Ref509428922pdf.exe	86
PID 5540 set thread context of 3592	5540	csc.exe	56
PID 4080 set thread context of 3592	4080	ipconfig.exe	56

System Location Discovery: System Language Discovery 1 TTPs 2 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	ipconfig.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
4080	ipconfig.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-308834014-1004923324-1191300197-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
5540	csc.exe
5540	csc.exe
5540	csc.exe
5540	csc.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe
4080	ipconfig.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
5540	csc.exe
5540	csc.exe
5540	csc.exe
4080	ipconfig.exe
4080	ipconfig.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2968	AWB_Ref509428922pdf.exe
Token: SeDebugPrivilege	5540	csc.exe
Token: SeDebugPrivilege	4080	ipconfig.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3592	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2968 wrote to memory of 2396	2968	AWB_Ref509428922pdf.exe	85
PID 2968 wrote to memory of 2396	2968	AWB_Ref509428922pdf.exe	85
PID 2968 wrote to memory of 2396	2968	AWB_Ref509428922pdf.exe	85
PID 2968 wrote to memory of 5540	2968	AWB_Ref509428922pdf.exe	86
PID 2968 wrote to memory of 5540	2968	AWB_Ref509428922pdf.exe	86
PID 2968 wrote to memory of 5540	2968	AWB_Ref509428922pdf.exe	86
PID 2968 wrote to memory of 5540	2968	AWB_Ref509428922pdf.exe	86
PID 2968 wrote to memory of 5540	2968	AWB_Ref509428922pdf.exe	86
PID 2968 wrote to memory of 5540	2968	AWB_Ref509428922pdf.exe	86
PID 3592 wrote to memory of 4080	3592	Explorer.EXE	89
PID 3592 wrote to memory of 4080	3592	Explorer.EXE	89
PID 3592 wrote to memory of 4080	3592	Explorer.EXE	89
PID 4080 wrote to memory of 5824	4080	ipconfig.exe	95
PID 4080 wrote to memory of 5824	4080	ipconfig.exe	95
PID 4080 wrote to memory of 5824	4080	ipconfig.exe	95

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3592
- C:\Users\Admin\AppData\Local\Temp\AWB_Ref509428922pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\AWB_Ref509428922pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2968
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe"
    3⤵
    PID:2396
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:5540
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:5376
- C:\Windows\SysWOW64\ipconfig.exe
  "C:\Windows\SysWOW64\ipconfig.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Gathers network information
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4080
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:5824

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Privilege Escalation

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

Replay Monitor

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Downloads

memory/3592-5-0x0000000002B50000-0x0000000002C0C000-memory.dmp

Filesize
752KB

Download
memory/3592-9-0x0000000002B50000-0x0000000002C0C000-memory.dmp

Filesize
752KB

Download
memory/3592-13-0x0000000008600000-0x0000000008744000-memory.dmp

Filesize
1.3MB

Download
memory/3592-14-0x0000000008600000-0x0000000008744000-memory.dmp

Filesize
1.3MB

Download
memory/3592-16-0x0000000008600000-0x0000000008744000-memory.dmp

Filesize
1.3MB

Download
memory/4080-6-0x00000000002C0000-0x00000000002CB000-memory.dmp

Filesize
44KB

Download
memory/4080-7-0x00000000002C0000-0x00000000002CB000-memory.dmp

Filesize
44KB

Download
memory/4080-8-0x0000000000930000-0x000000000095F000-memory.dmp

Filesize
188KB

Download
memory/5540-0-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/5540-1-0x00000000019F0000-0x0000000001D3A000-memory.dmp

Filesize
3.3MB

Download
memory/5540-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/5540-4-0x0000000001570000-0x0000000001585000-memory.dmp

Filesize
84KB

Download