formbook | 9a9381dbc7eea48c1a098e0b4d8432dc615b4f41ed697369f22833d8ceef9e9c

General

Target

eccd7dfeb19b4548dfef20db82d8b1e1.exe
Size

599KB
MD5

eccd7dfeb19b4548dfef20db82d8b1e1
SHA1

83d90a828103c1d5d256749faf1c031203460949
SHA256

9a9381dbc7eea48c1a098e0b4d8432dc615b4f41ed697369f22833d8ceef9e9c
SHA512

365ec5386ad8d74a27eacfcdd91f3e74d13b84de456b97301f7a9504cac172d39f96994cd443f8b998963cf3f26425e42e6abec4d8743bb41da6e1f03bf6bd31
SSDEEP

12288:aB++PWUxinECnya0J4x04YaX8x+d0gsej4caNyEKaDBT5aba8VdtTJs:aB++OVxyMu4Ogd5cca4haCI

Score

10^/10

formbook btrd discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

btrd

Decoy

everslane.com

prairieviewelectric.online

dszvhgd.com

papamuch.com

8129k.vip

jeffreestar.gold

bestguestrentals.com

nvzhuang1.net

anangtoto.com

yxfgor.top

practicalpoppers.com

thebestanglephotography.online

koormm.top

criika.net

audioflow.online

380747.net

jiuguanwang.net

bloxequities.com

v321c.com

sugar.monster

Signatures

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

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral1/memory/2304-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2304-17-0x0000000000970000-0x0000000000C73000-memory.dmp	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
2608	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2100 set thread context of 2304	2100	eccd7dfeb19b4548dfef20db82d8b1e1.exe	35

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 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	eccd7dfeb19b4548dfef20db82d8b1e1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2100	eccd7dfeb19b4548dfef20db82d8b1e1.exe
2100	eccd7dfeb19b4548dfef20db82d8b1e1.exe
2100	eccd7dfeb19b4548dfef20db82d8b1e1.exe
2100	eccd7dfeb19b4548dfef20db82d8b1e1.exe
2304	eccd7dfeb19b4548dfef20db82d8b1e1.exe
2608	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2100	eccd7dfeb19b4548dfef20db82d8b1e1.exe
Token: SeDebugPrivilege	2608	powershell.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 2608	2100	eccd7dfeb19b4548dfef20db82d8b1e1.exe	31
PID 2100 wrote to memory of 2608	2100	eccd7dfeb19b4548dfef20db82d8b1e1.exe	31
PID 2100 wrote to memory of 2608	2100	eccd7dfeb19b4548dfef20db82d8b1e1.exe	31
PID 2100 wrote to memory of 2608	2100	eccd7dfeb19b4548dfef20db82d8b1e1.exe	31
PID 2100 wrote to memory of 2972	2100	eccd7dfeb19b4548dfef20db82d8b1e1.exe	32
PID 2100 wrote to memory of 2972	2100	eccd7dfeb19b4548dfef20db82d8b1e1.exe	32
PID 2100 wrote to memory of 2972	2100	eccd7dfeb19b4548dfef20db82d8b1e1.exe	32
PID 2100 wrote to memory of 2972	2100	eccd7dfeb19b4548dfef20db82d8b1e1.exe	32
PID 2100 wrote to memory of 2080	2100	eccd7dfeb19b4548dfef20db82d8b1e1.exe	34
PID 2100 wrote to memory of 2080	2100	eccd7dfeb19b4548dfef20db82d8b1e1.exe	34
PID 2100 wrote to memory of 2080	2100	eccd7dfeb19b4548dfef20db82d8b1e1.exe	34
PID 2100 wrote to memory of 2080	2100	eccd7dfeb19b4548dfef20db82d8b1e1.exe	34
PID 2100 wrote to memory of 2304	2100	eccd7dfeb19b4548dfef20db82d8b1e1.exe	35
PID 2100 wrote to memory of 2304	2100	eccd7dfeb19b4548dfef20db82d8b1e1.exe	35
PID 2100 wrote to memory of 2304	2100	eccd7dfeb19b4548dfef20db82d8b1e1.exe	35
PID 2100 wrote to memory of 2304	2100	eccd7dfeb19b4548dfef20db82d8b1e1.exe	35
PID 2100 wrote to memory of 2304	2100	eccd7dfeb19b4548dfef20db82d8b1e1.exe	35
PID 2100 wrote to memory of 2304	2100	eccd7dfeb19b4548dfef20db82d8b1e1.exe	35
PID 2100 wrote to memory of 2304	2100	eccd7dfeb19b4548dfef20db82d8b1e1.exe	35

C:\Users\Admin\AppData\Local\Temp\eccd7dfeb19b4548dfef20db82d8b1e1.exe
"C:\Users\Admin\AppData\Local\Temp\eccd7dfeb19b4548dfef20db82d8b1e1.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2100
- 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\eccd7dfeb19b4548dfef20db82d8b1e1.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2608
- C:\Users\Admin\AppData\Local\Temp\eccd7dfeb19b4548dfef20db82d8b1e1.exe
  "C:\Users\Admin\AppData\Local\Temp\eccd7dfeb19b4548dfef20db82d8b1e1.exe"
  2⤵
  PID:2972
- C:\Users\Admin\AppData\Local\Temp\eccd7dfeb19b4548dfef20db82d8b1e1.exe
  "C:\Users\Admin\AppData\Local\Temp\eccd7dfeb19b4548dfef20db82d8b1e1.exe"
  2⤵
  PID:2080
- C:\Users\Admin\AppData\Local\Temp\eccd7dfeb19b4548dfef20db82d8b1e1.exe
  "C:\Users\Admin\AppData\Local\Temp\eccd7dfeb19b4548dfef20db82d8b1e1.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2304

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2100-0-0x00000000746CE000-0x00000000746CF000-memory.dmp

Filesize
4KB

Download
memory/2100-1-0x0000000000230000-0x00000000002CC000-memory.dmp

Filesize
624KB

Download
memory/2100-2-0x00000000746C0000-0x0000000074DAE000-memory.dmp

Filesize
6.9MB

Download
memory/2100-3-0x0000000000310000-0x0000000000320000-memory.dmp

Filesize
64KB

Download
memory/2100-4-0x00000000746CE000-0x00000000746CF000-memory.dmp

Filesize
4KB

Download
memory/2100-5-0x00000000746C0000-0x0000000074DAE000-memory.dmp

Filesize
6.9MB

Download
memory/2100-6-0x0000000005060000-0x00000000050D6000-memory.dmp

Filesize
472KB

Download
memory/2100-13-0x00000000746C0000-0x0000000074DAE000-memory.dmp

Filesize
6.9MB

Download
memory/2304-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2304-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2304-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2304-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2304-14-0x0000000000970000-0x0000000000C73000-memory.dmp

Filesize
3.0MB

Download
memory/2304-17-0x0000000000970000-0x0000000000C73000-memory.dmp

Filesize
3.0MB

Download

Analysis

Sharing