formbook | 49540bf783dec11edfad8cff91c53757987fa6f2c9b90af8aab6b1dd3cfc6b51

General

Target

Ordem de Compra.exe
Size

823KB
MD5

bc14d13f1d7d4299cb07aff24b039b07
SHA1

91d3595692f85beb86cbd70f89c0327c1484d423
SHA256

03f5b9544b3bb2db290e54dfe203f425374d973ac225df52a7cb29adc7998726
SHA512

85081d8863bdbaf8ea7f85f9e69f0c8ea9d7aa3c6bd3f144f421b6ef86302c6ce5a6dd96e87dc95e4b4d7e581ff969c1d98854f6d0b5963d67dcfbad9edf3a47
SSDEEP

12288:hjLGEbvQe+5cZO6OCAq2iNoRLgIRLu8lVY+96xZXgOCxAumyVnQWiEyJTwVdRDJ9:hjt1KtL3lVYpxZXgOCxJHQttTwfN

Score

10^/10

formbook fs8 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

fs8

Decoy

deanpalm.net

dinu-living.com

setsomegoals.com

craftyfresh.email

cleantons.com

szysjfjx.com

shestakova.info

70skinstore.com

ampletrade.ltd

cmmcwomen.group

michinoeki-taka.com

auntoni.com

huochegw.com

abovekulture.com

gzjige.com

americastandproudagain.com

hobbyhousekennels.com

1020waterviewdrive.com

5927399.com

gabipareras.net

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/1908-18-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/1908-23-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/4956-29-0x0000000001270000-0x000000000129E000-memory.dmp	formbook

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	Ordem de Compra.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 5104 set thread context of 1908	5104	Ordem de Compra.exe	93
PID 1908 set thread context of 3472	1908	RegSvcs.exe	56
PID 4956 set thread context of 3472	4956	raserver.exe	56

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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	raserver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Ordem de Compra.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4632	schtasks.exe

Suspicious behavior: EnumeratesProcesses 41 IoCs

pid	Process
5104	Ordem de Compra.exe
1908	RegSvcs.exe
1908	RegSvcs.exe
1908	RegSvcs.exe
1908	RegSvcs.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1908	RegSvcs.exe
1908	RegSvcs.exe
1908	RegSvcs.exe
4956	raserver.exe
4956	raserver.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	5104	Ordem de Compra.exe
Token: SeDebugPrivilege	1908	RegSvcs.exe
Token: SeDebugPrivilege	4956	raserver.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 5104 wrote to memory of 4632	5104	Ordem de Compra.exe	91
PID 5104 wrote to memory of 4632	5104	Ordem de Compra.exe	91
PID 5104 wrote to memory of 4632	5104	Ordem de Compra.exe	91
PID 5104 wrote to memory of 1908	5104	Ordem de Compra.exe	93
PID 5104 wrote to memory of 1908	5104	Ordem de Compra.exe	93
PID 5104 wrote to memory of 1908	5104	Ordem de Compra.exe	93
PID 5104 wrote to memory of 1908	5104	Ordem de Compra.exe	93
PID 5104 wrote to memory of 1908	5104	Ordem de Compra.exe	93
PID 5104 wrote to memory of 1908	5104	Ordem de Compra.exe	93
PID 3472 wrote to memory of 4956	3472	Explorer.EXE	94
PID 3472 wrote to memory of 4956	3472	Explorer.EXE	94
PID 3472 wrote to memory of 4956	3472	Explorer.EXE	94
PID 4956 wrote to memory of 2064	4956	raserver.exe	95
PID 4956 wrote to memory of 2064	4956	raserver.exe	95
PID 4956 wrote to memory of 2064	4956	raserver.exe	95

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3472
- C:\Users\Admin\AppData\Local\Temp\Ordem de Compra.exe
  "C:\Users\Admin\AppData\Local\Temp\Ordem de Compra.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5104
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HOPHHQxYRGsD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp69B2.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4632
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1908
- C:\Windows\SysWOW64\raserver.exe
  "C:\Windows\SysWOW64\raserver.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:4956
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2064

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp69B2.tmp

Filesize
1KB

MD5
20ca9280b28e46f2d3b1330f05525bb3

SHA1
2481ed54031ab1b54abb60ef5f86a6a1c745cfb1

SHA256
94dca21f560f4e8fc3ad97498facc305b2aeee2cf36653693550a9dc1b25c27b

SHA512
55fed936d9d91e828530da343c034b2d1434d23a6addb386ca0731c87864b09c0d9af403171ad7c2d08b22830bfaf150b3de31e476fa01bfb9a3bb951b266fa5

Download Submit
memory/1908-24-0x0000000001970000-0x0000000001984000-memory.dmp

Filesize
80KB

Download
memory/1908-18-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1908-21-0x00000000019B0000-0x0000000001CFA000-memory.dmp

Filesize
3.3MB

Download
memory/1908-23-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3472-34-0x0000000007D20000-0x0000000007DD0000-memory.dmp

Filesize
704KB

Download
memory/3472-25-0x00000000025C0000-0x00000000026E3000-memory.dmp

Filesize
1.1MB

Download
memory/3472-30-0x00000000025C0000-0x00000000026E3000-memory.dmp

Filesize
1.1MB

Download
memory/3472-35-0x0000000007D20000-0x0000000007DD0000-memory.dmp

Filesize
704KB

Download
memory/3472-37-0x0000000007D20000-0x0000000007DD0000-memory.dmp

Filesize
704KB

Download
memory/4956-28-0x0000000000C50000-0x0000000000C6F000-memory.dmp

Filesize
124KB

Download
memory/4956-26-0x0000000000C50000-0x0000000000C6F000-memory.dmp

Filesize
124KB

Download
memory/4956-29-0x0000000001270000-0x000000000129E000-memory.dmp

Filesize
184KB

Download
memory/5104-6-0x0000000005A90000-0x0000000005AE6000-memory.dmp

Filesize
344KB

Download
memory/5104-7-0x0000000074AE0000-0x0000000075290000-memory.dmp

Filesize
7.7MB

Download
memory/5104-20-0x0000000074AE0000-0x0000000075290000-memory.dmp

Filesize
7.7MB

Download
memory/5104-11-0x00000000066C0000-0x000000000672C000-memory.dmp

Filesize
432KB

Download
memory/5104-10-0x0000000074AE0000-0x0000000075290000-memory.dmp

Filesize
7.7MB

Download
memory/5104-9-0x0000000074AEE000-0x0000000074AEF000-memory.dmp

Filesize
4KB

Download
memory/5104-8-0x00000000057D0000-0x00000000057E0000-memory.dmp

Filesize
64KB

Download
memory/5104-12-0x0000000006750000-0x0000000006784000-memory.dmp

Filesize
208KB

Download
memory/5104-0-0x0000000074AEE000-0x0000000074AEF000-memory.dmp

Filesize
4KB

Download
memory/5104-5-0x00000000057B0000-0x00000000057BA000-memory.dmp

Filesize
40KB

Download
memory/5104-4-0x0000000005810000-0x00000000058A2000-memory.dmp

Filesize
584KB

Download
memory/5104-3-0x0000000005DC0000-0x0000000006364000-memory.dmp

Filesize
5.6MB

Download
memory/5104-2-0x00000000056B0000-0x000000000574C000-memory.dmp

Filesize
624KB

Download
memory/5104-1-0x0000000000C50000-0x0000000000D24000-memory.dmp

Filesize
848KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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