formbook | 7aec0c4095d53783fffee307d61a88c48ef24127f7d6a02a10dab486f6d98338

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
15-10-2024 07:35

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General

Target

test.exe
Size

585KB
MD5

256082a7c53b5ee01a25fc5888fbe757
SHA1

4a85dc392c02fa1e62ab8729e3967531233e5f53
SHA256

b37b37330f9c4970ca450212d0e3e902fb44110b4570bb07574621354509d045
SHA512

572e36abeb6e2b34d3a67889724ed901c640137b95425d3573376ce6d8be4026d8c64fef28b8d4548d0337528f46ff0ca2b967612f1d687e13597e0da7f58b3a
SSDEEP

12288:w8USn/BfGWFKAwszRbZEXdt6Q3zLeoZETGPENjq8S2YloHFQrqkOI/hyO:wS5fGY7z/ezLnZEyPUjnIlofm1

Score

10^/10

formbook dn13 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

dn13

Decoy

5q53s.top

f9813.top

ysticsmoke.net

ignorysingeysquints.cfd

yncsignature.live

svp-their.xyz

outya.xyz

wlkflwef3sf2wf.top

etterjugfetkaril.cfd

p9eh2s99b5.top

400108iqlnnqi219.top

ynsu-condition.xyz

ndividual-bfiaen.xyz

anceibizamagazine.net

itrussips.live

orkcubefood.xyz

lindsandfurnishings.shop

ajwmid.top

pigramescentfeatous.shop

mbvcv56789.click

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/4924-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4924-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2128-21-0x0000000000320000-0x000000000034F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3332 set thread context of 4924	3332	test.exe	93
PID 4924 set thread context of 3448	4924	test.exe	56
PID 2128 set thread context of 3448	2128	systray.exe	56

System Location Discovery: System Language Discovery 1 TTPs 3 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	test.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	systray.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 58 IoCs

pid	Process
4924	test.exe
4924	test.exe
4924	test.exe
4924	test.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe
2128	systray.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4924	test.exe
4924	test.exe
4924	test.exe
2128	systray.exe
2128	systray.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	4924	test.exe
Token: SeDebugPrivilege	2128	systray.exe
Token: SeShutdownPrivilege	3448	Explorer.EXE
Token: SeCreatePagefilePrivilege	3448	Explorer.EXE
Token: SeShutdownPrivilege	3448	Explorer.EXE
Token: SeCreatePagefilePrivilege	3448	Explorer.EXE
Token: SeShutdownPrivilege	3448	Explorer.EXE
Token: SeCreatePagefilePrivilege	3448	Explorer.EXE
Token: SeShutdownPrivilege	3448	Explorer.EXE
Token: SeCreatePagefilePrivilege	3448	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3448	Explorer.EXE
3448	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3448	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3332 wrote to memory of 4924	3332	test.exe	93
PID 3332 wrote to memory of 4924	3332	test.exe	93
PID 3332 wrote to memory of 4924	3332	test.exe	93
PID 3332 wrote to memory of 4924	3332	test.exe	93
PID 3332 wrote to memory of 4924	3332	test.exe	93
PID 3332 wrote to memory of 4924	3332	test.exe	93
PID 3448 wrote to memory of 2128	3448	Explorer.EXE	94
PID 3448 wrote to memory of 2128	3448	Explorer.EXE	94
PID 3448 wrote to memory of 2128	3448	Explorer.EXE	94
PID 2128 wrote to memory of 636	2128	systray.exe	96
PID 2128 wrote to memory of 636	2128	systray.exe	96
PID 2128 wrote to memory of 636	2128	systray.exe	96

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3448
- C:\Users\Admin\AppData\Local\Temp\test.exe
  "C:\Users\Admin\AppData\Local\Temp\test.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3332
- - C:\Users\Admin\AppData\Local\Temp\test.exe
    "C:\Users\Admin\AppData\Local\Temp\test.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4924
- C:\Windows\SysWOW64\systray.exe
  "C:\Windows\SysWOW64\systray.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:2128
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\test.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:636

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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/2128-20-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/2128-21-0x0000000000320000-0x000000000034F000-memory.dmp

Filesize
188KB

Download
memory/2128-19-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/3332-6-0x00000000748E0000-0x0000000075090000-memory.dmp

Filesize
7.7MB

Download
memory/3332-1-0x0000000000A50000-0x0000000000AE8000-memory.dmp

Filesize
608KB

Download
memory/3332-5-0x0000000005520000-0x00000000055BC000-memory.dmp

Filesize
624KB

Download
memory/3332-0-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/3332-7-0x0000000006990000-0x00000000069A2000-memory.dmp

Filesize
72KB

Download
memory/3332-8-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/3332-9-0x00000000748E0000-0x0000000075090000-memory.dmp

Filesize
7.7MB

Download
memory/3332-10-0x0000000007150000-0x00000000071C6000-memory.dmp

Filesize
472KB

Download
memory/3332-4-0x00000000053A0000-0x00000000053AA000-memory.dmp

Filesize
40KB

Download
memory/3332-13-0x00000000748E0000-0x0000000075090000-memory.dmp

Filesize
7.7MB

Download
memory/3332-2-0x0000000005980000-0x0000000005F24000-memory.dmp

Filesize
5.6MB

Download
memory/3332-3-0x00000000053D0000-0x0000000005462000-memory.dmp

Filesize
584KB

Download
memory/3448-18-0x0000000008790000-0x0000000008900000-memory.dmp

Filesize
1.4MB

Download
memory/3448-22-0x0000000008790000-0x0000000008900000-memory.dmp

Filesize
1.4MB

Download
memory/3448-25-0x0000000008A70000-0x0000000008B81000-memory.dmp

Filesize
1.1MB

Download
memory/3448-26-0x0000000008A70000-0x0000000008B81000-memory.dmp

Filesize
1.1MB

Download
memory/3448-28-0x0000000008A70000-0x0000000008B81000-memory.dmp

Filesize
1.1MB

Download
memory/4924-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4924-17-0x0000000001060000-0x0000000001074000-memory.dmp

Filesize
80KB

Download
memory/4924-14-0x00000000012C0000-0x000000000160A000-memory.dmp

Filesize
3.3MB

Download
memory/4924-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download