formbook | eedbbe2b45d3dea47ddb5b56848edf35f0439ec68bf2767ea985d28b4834db0a

General

Target

8649b814fa724e40e4dae7cc2d9d727da957b760e7d28d3af04a7c1011311a00.exe
Size

599KB
MD5

92592b4ed9b80ddab77d8e19d2ea120e
SHA1

aae8fdb85bbf71c66d6001be2302018f97ea3375
SHA256

8649b814fa724e40e4dae7cc2d9d727da957b760e7d28d3af04a7c1011311a00
SHA512

3e6a4ec71c2ce0d2989325f09db6c9189c8eca95af9ea1bb749436f79826afe5a12df2fe6aa2bc2cc6b02fe91fcb230b9cdb73ff0ac8ecff4c92e910bfcb3352
SSDEEP

12288:07Io/7u4UlyVVKhl3tpBuivKhwtfgfRFmFeytYY2j3ga0gvV:07T7cWm9pBqQfScFeUYY2jwa0

Score

10^/10

formbook dfc discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

dfc

Decoy

photographytune.com

oleandrinbotanical.com

hibcapital.com

katgermosen.com

careerwomensgol.com

oliverezechi.net

hrbhrt.com

codeopulence.com

merrilllynchph.com

globallionsco.com

cutass.com

sarahalhashemi.com

izzyandi.com

snacklabbet.com

manufaktura-uyuta.online

powayvotes.net

helpspine.com

arlto.info

sofakingwet.com

cretanhandcarving.com

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
behavioral1/memory/2680-5-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/2680-9-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1900 set thread context of 2680	1900	8649b814fa724e40e4dae7cc2d9d727da957b760e7d28d3af04a7c1011311a00.exe	30
PID 2680 set thread context of 1232	2680	RegAsm.exe	21
PID 2676 set thread context of 1232	2676	mstsc.exe	21

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8649b814fa724e40e4dae7cc2d9d727da957b760e7d28d3af04a7c1011311a00.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstsc.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2680	RegAsm.exe
2680	RegAsm.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe
2676	mstsc.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
1900	8649b814fa724e40e4dae7cc2d9d727da957b760e7d28d3af04a7c1011311a00.exe
2680	RegAsm.exe
2680	RegAsm.exe
2680	RegAsm.exe
2676	mstsc.exe
2676	mstsc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2680	RegAsm.exe
Token: SeDebugPrivilege	2676	mstsc.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1900 wrote to memory of 2680	1900	8649b814fa724e40e4dae7cc2d9d727da957b760e7d28d3af04a7c1011311a00.exe	30
PID 1900 wrote to memory of 2680	1900	8649b814fa724e40e4dae7cc2d9d727da957b760e7d28d3af04a7c1011311a00.exe	30
PID 1900 wrote to memory of 2680	1900	8649b814fa724e40e4dae7cc2d9d727da957b760e7d28d3af04a7c1011311a00.exe	30
PID 1900 wrote to memory of 2680	1900	8649b814fa724e40e4dae7cc2d9d727da957b760e7d28d3af04a7c1011311a00.exe	30
PID 1900 wrote to memory of 2680	1900	8649b814fa724e40e4dae7cc2d9d727da957b760e7d28d3af04a7c1011311a00.exe	30
PID 1900 wrote to memory of 2680	1900	8649b814fa724e40e4dae7cc2d9d727da957b760e7d28d3af04a7c1011311a00.exe	30
PID 1900 wrote to memory of 2680	1900	8649b814fa724e40e4dae7cc2d9d727da957b760e7d28d3af04a7c1011311a00.exe	30
PID 1900 wrote to memory of 2680	1900	8649b814fa724e40e4dae7cc2d9d727da957b760e7d28d3af04a7c1011311a00.exe	30
PID 1232 wrote to memory of 2676	1232	Explorer.EXE	31
PID 1232 wrote to memory of 2676	1232	Explorer.EXE	31
PID 1232 wrote to memory of 2676	1232	Explorer.EXE	31
PID 1232 wrote to memory of 2676	1232	Explorer.EXE	31
PID 2676 wrote to memory of 2772	2676	mstsc.exe	32
PID 2676 wrote to memory of 2772	2676	mstsc.exe	32
PID 2676 wrote to memory of 2772	2676	mstsc.exe	32
PID 2676 wrote to memory of 2772	2676	mstsc.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1232
- C:\Users\Admin\AppData\Local\Temp\8649b814fa724e40e4dae7cc2d9d727da957b760e7d28d3af04a7c1011311a00.exe
  "C:\Users\Admin\AppData\Local\Temp\8649b814fa724e40e4dae7cc2d9d727da957b760e7d28d3af04a7c1011311a00.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:1900
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2680
- C:\Windows\SysWOW64\mstsc.exe
  "C:\Windows\SysWOW64\mstsc.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:2676
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2772

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1232-11-0x0000000002FF0000-0x00000000030F0000-memory.dmp

Filesize
1024KB

Download
memory/1232-15-0x0000000004A60000-0x0000000004B27000-memory.dmp

Filesize
796KB

Download
memory/1232-12-0x0000000004A60000-0x0000000004B27000-memory.dmp

Filesize
796KB

Download
memory/1900-6-0x0000000074750000-0x0000000074E3E000-memory.dmp

Filesize
6.9MB

Download
memory/1900-4-0x0000000074750000-0x0000000074E3E000-memory.dmp

Filesize
6.9MB

Download
memory/1900-0-0x000000007475E000-0x000000007475F000-memory.dmp

Filesize
4KB

Download
memory/1900-3-0x0000000000BB0000-0x0000000000BEA000-memory.dmp

Filesize
232KB

Download
memory/1900-2-0x0000000074750000-0x0000000074E3E000-memory.dmp

Filesize
6.9MB

Download
memory/1900-1-0x0000000000FD0000-0x000000000106C000-memory.dmp

Filesize
624KB

Download
memory/2676-13-0x0000000000C40000-0x0000000000D44000-memory.dmp

Filesize
1.0MB

Download
memory/2676-14-0x0000000000C40000-0x0000000000D44000-memory.dmp

Filesize
1.0MB

Download
memory/2680-5-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2680-7-0x00000000025C0000-0x00000000028C3000-memory.dmp

Filesize
3.0MB

Download
memory/2680-10-0x00000000007F0000-0x0000000000804000-memory.dmp

Filesize
80KB

Download
memory/2680-9-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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