formbook | 55a8d72b696099f7b5803eafc1afd27432754f3c0c90bbdac46a6e964e5818f4

General

Target

PAGO200924.exe
Size

576KB
MD5

5d2e426cf89c66fb33b01a84007ea057
SHA1

25b77c8f4445a2321bf9c8ed861d7f016fbc02d6
SHA256

55a8d72b696099f7b5803eafc1afd27432754f3c0c90bbdac46a6e964e5818f4
SHA512

9427881394038aaab2a371e725412e6377b870549905806049c89feb4554600d45adc93e68306264d13095362bf190e73f821bcbaab1939b991ddbb31e789a84
SSDEEP

12288:3/4qjqYBC75gyYzhGHW1EDO6kjLa461fLB/PNfMLI:3ApUGWQWuKzi46BLBXF7

Score

10^/10

formbook bc01 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

bc01

Decoy

epatitis-treatment-26155.bond

52cy67sk.bond

nline-degree-6987776.world

ingxingdiandeng-2033.top

mberbreeze.cyou

48xc300mw.autos

obs-for-seniors-39582.bond

tpetersburg-3-tonn.online

egafon-parser.online

172jh.shop

ltraman.pro

bqfhnys.shop

ntercash24-cad.homes

uhtwister.cloud

alk-in-tubs-27353.bond

ucas-saaad.buzz

oko.events

8080713.xyz

refabricated-homes-74404.bond

inaa.boo

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/2852-14-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2852-18-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2844-25-0x0000000000080000-0x00000000000AF000-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
2856	powershell.exe

Deletes itself 1 IoCs

pid	Process
2700	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2116 set thread context of 2852	2116	PAGO200924.exe	32
PID 2852 set thread context of 1196	2852	PAGO200924.exe	20
PID 2844 set thread context of 1196	2844	systray.exe	20

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 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	systray.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PAGO200924.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
2116	PAGO200924.exe
2116	PAGO200924.exe
2852	PAGO200924.exe
2852	PAGO200924.exe
2856	powershell.exe
2844	systray.exe
2844	systray.exe
2844	systray.exe
2844	systray.exe
2844	systray.exe
2844	systray.exe
2844	systray.exe
2844	systray.exe
2844	systray.exe
2844	systray.exe
2844	systray.exe
2844	systray.exe
2844	systray.exe
2844	systray.exe
2844	systray.exe
2844	systray.exe
2844	systray.exe
2844	systray.exe
2844	systray.exe
2844	systray.exe
2844	systray.exe
2844	systray.exe
2844	systray.exe
2844	systray.exe
2844	systray.exe
2844	systray.exe
2844	systray.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2852	PAGO200924.exe
2852	PAGO200924.exe
2852	PAGO200924.exe
2844	systray.exe
2844	systray.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2116	PAGO200924.exe
Token: SeDebugPrivilege	2852	PAGO200924.exe
Token: SeDebugPrivilege	2856	powershell.exe
Token: SeDebugPrivilege	2844	systray.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2116 wrote to memory of 2856	2116	PAGO200924.exe	29
PID 2116 wrote to memory of 2856	2116	PAGO200924.exe	29
PID 2116 wrote to memory of 2856	2116	PAGO200924.exe	29
PID 2116 wrote to memory of 2856	2116	PAGO200924.exe	29
PID 2116 wrote to memory of 2936	2116	PAGO200924.exe	31
PID 2116 wrote to memory of 2936	2116	PAGO200924.exe	31
PID 2116 wrote to memory of 2936	2116	PAGO200924.exe	31
PID 2116 wrote to memory of 2936	2116	PAGO200924.exe	31
PID 2116 wrote to memory of 2852	2116	PAGO200924.exe	32
PID 2116 wrote to memory of 2852	2116	PAGO200924.exe	32
PID 2116 wrote to memory of 2852	2116	PAGO200924.exe	32
PID 2116 wrote to memory of 2852	2116	PAGO200924.exe	32
PID 2116 wrote to memory of 2852	2116	PAGO200924.exe	32
PID 2116 wrote to memory of 2852	2116	PAGO200924.exe	32
PID 2116 wrote to memory of 2852	2116	PAGO200924.exe	32
PID 1196 wrote to memory of 2844	1196	Explorer.EXE	33
PID 1196 wrote to memory of 2844	1196	Explorer.EXE	33
PID 1196 wrote to memory of 2844	1196	Explorer.EXE	33
PID 1196 wrote to memory of 2844	1196	Explorer.EXE	33
PID 2844 wrote to memory of 2700	2844	systray.exe	34
PID 2844 wrote to memory of 2700	2844	systray.exe	34
PID 2844 wrote to memory of 2700	2844	systray.exe	34
PID 2844 wrote to memory of 2700	2844	systray.exe	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1196
- C:\Users\Admin\AppData\Local\Temp\PAGO200924.exe
  "C:\Users\Admin\AppData\Local\Temp\PAGO200924.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2116
- - 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\PAGO200924.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2856
- - C:\Users\Admin\AppData\Local\Temp\PAGO200924.exe
    "C:\Users\Admin\AppData\Local\Temp\PAGO200924.exe"
    3⤵
    PID:2936
- - C:\Users\Admin\AppData\Local\Temp\PAGO200924.exe
    "C:\Users\Admin\AppData\Local\Temp\PAGO200924.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2852
- 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:2844
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\PAGO200924.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2700

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

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Downloads

memory/1196-21-0x0000000007E70000-0x0000000007FE7000-memory.dmp

Filesize
1.5MB

Download
memory/1196-20-0x0000000003E10000-0x0000000003F10000-memory.dmp

Filesize
1024KB

Download
memory/1196-27-0x0000000007E70000-0x0000000007FE7000-memory.dmp

Filesize
1.5MB

Download
memory/2116-6-0x0000000005860000-0x00000000058D6000-memory.dmp

Filesize
472KB

Download
memory/2116-4-0x000000007444E000-0x000000007444F000-memory.dmp

Filesize
4KB

Download
memory/2116-5-0x0000000074440000-0x0000000074B2E000-memory.dmp

Filesize
6.9MB

Download
memory/2116-3-0x00000000005F0000-0x0000000000600000-memory.dmp

Filesize
64KB

Download
memory/2116-2-0x0000000074440000-0x0000000074B2E000-memory.dmp

Filesize
6.9MB

Download
memory/2116-0-0x000000007444E000-0x000000007444F000-memory.dmp

Filesize
4KB

Download
memory/2116-15-0x0000000074440000-0x0000000074B2E000-memory.dmp

Filesize
6.9MB

Download
memory/2116-1-0x0000000000AD0000-0x0000000000B66000-memory.dmp

Filesize
600KB

Download
memory/2844-25-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2844-24-0x0000000000A90000-0x0000000000A95000-memory.dmp

Filesize
20KB

Download
memory/2852-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2852-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2852-16-0x0000000000B70000-0x0000000000E73000-memory.dmp

Filesize
3.0MB

Download
memory/2852-19-0x00000000001D0000-0x00000000001E4000-memory.dmp

Filesize
80KB

Download
memory/2852-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2852-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2852-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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