formbook | ad796730fe76da567b892419b2cdba44eeaef29bf62b637c3c3af4cce42886ce

General

Target

Bill for the Month of August.exe
Size

1.1MB
MD5

5cbd8d9ed7f11fe6795e4e47cc23b390
SHA1

adb77874bd930fb48291c9822277640c5e0452a1
SHA256

ad796730fe76da567b892419b2cdba44eeaef29bf62b637c3c3af4cce42886ce
SHA512

9128e4ca530669884e7a6b148a1245183442ec59f1a4ffb152868298a2a14e99afd34ab887ec821fc5e343a74fbdcbbdb19f21b1109809a33f65ec73a8e43799
SSDEEP

24576:ZAHnh+eWsN3skA4RV1Hom2KXMmHagYFIuXO+mzds6i05:gh+ZkldoPK8YagYRXye65

Score

10^/10

formbook pt46 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

pt46

Decoy

twinportslocal.com

rovor.store

98169.club

mdywl.com

jrd3s.rest

aston1717.top

floridawoodworkingmachinery.com

17tk555t.com

ankitsho.shop

seclameh.com

realrecordlabel.com

trenchonbirmingham.com

af28.top

rtp1kenzototo.com

theselflovesite.com

promotegetpaid.info

strategiclogisticsagency.com

learneracademy.net

per-watch.com

betbox2341.com

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
behavioral1/memory/2200-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2200-14-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1244-19-0x0000000000090000-0x00000000000BF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2388 set thread context of 2200	2388	Bill for the Month of August.exe	30
PID 2200 set thread context of 1200	2200	svchost.exe	21
PID 1244 set thread context of 1200	1244	chkdsk.exe	21

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	Bill for the Month of August.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chkdsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2200	svchost.exe
2200	svchost.exe
1244	chkdsk.exe
1244	chkdsk.exe
1244	chkdsk.exe
1244	chkdsk.exe
1244	chkdsk.exe
1244	chkdsk.exe
1244	chkdsk.exe
1244	chkdsk.exe
1244	chkdsk.exe
1244	chkdsk.exe
1244	chkdsk.exe
1244	chkdsk.exe
1244	chkdsk.exe
1244	chkdsk.exe
1244	chkdsk.exe
1244	chkdsk.exe
1244	chkdsk.exe
1244	chkdsk.exe
1244	chkdsk.exe
1244	chkdsk.exe
1244	chkdsk.exe
1244	chkdsk.exe
1244	chkdsk.exe
1244	chkdsk.exe
1244	chkdsk.exe
1244	chkdsk.exe
1244	chkdsk.exe
1244	chkdsk.exe
1244	chkdsk.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2388	Bill for the Month of August.exe
2200	svchost.exe
2200	svchost.exe
2200	svchost.exe
1244	chkdsk.exe
1244	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2200	svchost.exe
Token: SeDebugPrivilege	1244	chkdsk.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2388	Bill for the Month of August.exe
2388	Bill for the Month of August.exe
1200	Explorer.EXE
1200	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2388	Bill for the Month of August.exe
2388	Bill for the Month of August.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 2200	2388	Bill for the Month of August.exe	30
PID 2388 wrote to memory of 2200	2388	Bill for the Month of August.exe	30
PID 2388 wrote to memory of 2200	2388	Bill for the Month of August.exe	30
PID 2388 wrote to memory of 2200	2388	Bill for the Month of August.exe	30
PID 2388 wrote to memory of 2200	2388	Bill for the Month of August.exe	30
PID 1200 wrote to memory of 1244	1200	Explorer.EXE	31
PID 1200 wrote to memory of 1244	1200	Explorer.EXE	31
PID 1200 wrote to memory of 1244	1200	Explorer.EXE	31
PID 1200 wrote to memory of 1244	1200	Explorer.EXE	31
PID 1244 wrote to memory of 2484	1244	chkdsk.exe	32
PID 1244 wrote to memory of 2484	1244	chkdsk.exe	32
PID 1244 wrote to memory of 2484	1244	chkdsk.exe	32
PID 1244 wrote to memory of 2484	1244	chkdsk.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1200
- C:\Users\Admin\AppData\Local\Temp\Bill for the Month of August.exe
  "C:\Users\Admin\AppData\Local\Temp\Bill for the Month of August.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2388
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\Bill for the Month of August.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2200
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1244
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2484

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

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

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Downloads

memory/1200-16-0x0000000005120000-0x0000000005211000-memory.dmp

Filesize
964KB

Download
memory/1200-28-0x0000000006B70000-0x0000000006C83000-memory.dmp

Filesize
1.1MB

Download
memory/1200-26-0x0000000006B70000-0x0000000006C83000-memory.dmp

Filesize
1.1MB

Download
memory/1200-25-0x0000000006B70000-0x0000000006C83000-memory.dmp

Filesize
1.1MB

Download
memory/1200-20-0x0000000005120000-0x0000000005211000-memory.dmp

Filesize
964KB

Download
memory/1244-17-0x0000000000050000-0x0000000000057000-memory.dmp

Filesize
28KB

Download
memory/1244-18-0x0000000000050000-0x0000000000057000-memory.dmp

Filesize
28KB

Download
memory/1244-19-0x0000000000090000-0x00000000000BF000-memory.dmp

Filesize
188KB

Download
memory/2200-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2200-15-0x0000000000180000-0x0000000000194000-memory.dmp

Filesize
80KB

Download
memory/2200-12-0x00000000009E0000-0x0000000000CE3000-memory.dmp

Filesize
3.0MB

Download
memory/2200-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2388-10-0x00000000001E0000-0x00000000001E4000-memory.dmp

Filesize
16KB

Download

Analysis

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