formbook | 13c2e846638381446a4ec491de6e5b979b1b8a755971e1181631c3c6b6c1967f

General

Target

sample.exe
Size

845KB
MD5

0a0a91d81009e6f2543b365205d64cb8
SHA1

39cb4d0850b9d29661b53d62ddd47e3d085e8698
SHA256

b422b2744a87addbf9840dc44b5126379adfcf2a1e47bf6987e05616af4547d2
SHA512

da6e5672b21a523dcca1ad45f6b4a88d88db98503955d218d07e6a4522fe1e07c28fcf2b52c5a974ea77b7850dc44b6f4c3b91e19342dbf8ee84dc2fbbb8eeb9
SSDEEP

12288:A1d8c3QBT80DYfXPrk8C9p+AdiH6gZlrjP2V1Vsbw31o/r9rRWPZVmX1Vwm4Dw5z:10dZlo1uwSRWrmXHUDw53Q6F

Score

10^/10

formbook sqxs discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

sqxs

Decoy

creid-network.com

dinningatcastlehill.com

fundadilla.com

fashionmdeasy.com

magentos6.com

pushpartybdp.com

streamingnetwork.xyz

sevenredwalls.com

hsuehsun.space

leanbirthdaycake.com

rocketmortgagedeceit.com

cashflowdb.com

smilebringerdesign.com

naomicoleclinic.com

wingsforklift.com

newsounding.com

48hrbusinessrescue.pro

101osthoff456.com

attleticgreens.com

xx233.xyz

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/4848-16-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/4848-21-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/4584-26-0x0000000000720000-0x000000000074E000-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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	sample.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3220 set thread context of 4848	3220	sample.exe	93
PID 4848 set thread context of 3520	4848	RegSvcs.exe	56
PID 4584 set thread context of 3520	4584	colorcpl.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sample.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	colorcpl.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
1192	schtasks.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4848	RegSvcs.exe
4848	RegSvcs.exe
4848	RegSvcs.exe
4848	RegSvcs.exe
4584	colorcpl.exe
4584	colorcpl.exe
4584	colorcpl.exe
4584	colorcpl.exe
4584	colorcpl.exe
4584	colorcpl.exe
4584	colorcpl.exe
4584	colorcpl.exe
4584	colorcpl.exe
4584	colorcpl.exe
4584	colorcpl.exe
4584	colorcpl.exe
4584	colorcpl.exe
4584	colorcpl.exe
4584	colorcpl.exe
4584	colorcpl.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4848	RegSvcs.exe
4848	RegSvcs.exe
4848	RegSvcs.exe
4584	colorcpl.exe
4584	colorcpl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4848	RegSvcs.exe
Token: SeDebugPrivilege	4584	colorcpl.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3220 wrote to memory of 1192	3220	sample.exe	91
PID 3220 wrote to memory of 1192	3220	sample.exe	91
PID 3220 wrote to memory of 1192	3220	sample.exe	91
PID 3220 wrote to memory of 4848	3220	sample.exe	93
PID 3220 wrote to memory of 4848	3220	sample.exe	93
PID 3220 wrote to memory of 4848	3220	sample.exe	93
PID 3220 wrote to memory of 4848	3220	sample.exe	93
PID 3220 wrote to memory of 4848	3220	sample.exe	93
PID 3220 wrote to memory of 4848	3220	sample.exe	93
PID 3520 wrote to memory of 4584	3520	Explorer.EXE	94
PID 3520 wrote to memory of 4584	3520	Explorer.EXE	94
PID 3520 wrote to memory of 4584	3520	Explorer.EXE	94
PID 4584 wrote to memory of 4288	4584	colorcpl.exe	95
PID 4584 wrote to memory of 4288	4584	colorcpl.exe	95
PID 4584 wrote to memory of 4288	4584	colorcpl.exe	95

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3520
- C:\Users\Admin\AppData\Local\Temp\sample.exe
  "C:\Users\Admin\AppData\Local\Temp\sample.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3220
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VsXfErKVoHy" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1D42.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1192
- - 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:4848
- C:\Windows\SysWOW64\colorcpl.exe
  "C:\Windows\SysWOW64\colorcpl.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:4584
- - 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:4288

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\tmp1D42.tmp

Filesize
1KB

MD5
2b0919090309509a003623a1287a83b0

SHA1
b18280f5a97024acf957a098bfb853c07be1ec46

SHA256
b1266fae77fc3ca1059d981469992456ca114cf5154d184a43245853bfa6980d

SHA512
6adfba88f288c5a7740c398decd6e0ef0a40c127aa253f78f4b692ed854e68e169c64871626da29e6e6f03a4f75c98f9a55408344b66a17ec6b5fff393768c55

Download Submit
memory/3220-8-0x000000007487E000-0x000000007487F000-memory.dmp

Filesize
4KB

Download
memory/3220-5-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/3220-9-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/3220-4-0x0000000005240000-0x00000000052DC000-memory.dmp

Filesize
624KB

Download
memory/3220-10-0x0000000004B60000-0x0000000004C02000-memory.dmp

Filesize
648KB

Download
memory/3220-6-0x0000000005160000-0x000000000516A000-memory.dmp

Filesize
40KB

Download
memory/3220-7-0x0000000005140000-0x0000000005152000-memory.dmp

Filesize
72KB

Download
memory/3220-1-0x00000000006A0000-0x000000000077A000-memory.dmp

Filesize
872KB

Download
memory/3220-3-0x00000000051A0000-0x0000000005232000-memory.dmp

Filesize
584KB

Download
memory/3220-2-0x00000000056B0000-0x0000000005C54000-memory.dmp

Filesize
5.6MB

Download
memory/3220-0-0x000000007487E000-0x000000007487F000-memory.dmp

Filesize
4KB

Download
memory/3220-18-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/3520-34-0x00000000028F0000-0x00000000029DA000-memory.dmp

Filesize
936KB

Download
memory/3520-32-0x00000000028F0000-0x00000000029DA000-memory.dmp

Filesize
936KB

Download
memory/3520-31-0x00000000028F0000-0x00000000029DA000-memory.dmp

Filesize
936KB

Download
memory/3520-27-0x0000000008580000-0x000000000872A000-memory.dmp

Filesize
1.7MB

Download
memory/3520-23-0x0000000008580000-0x000000000872A000-memory.dmp

Filesize
1.7MB

Download
memory/4584-24-0x00000000006D0000-0x00000000006E9000-memory.dmp

Filesize
100KB

Download
memory/4584-25-0x00000000006D0000-0x00000000006E9000-memory.dmp

Filesize
100KB

Download
memory/4584-26-0x0000000000720000-0x000000000074E000-memory.dmp

Filesize
184KB

Download
memory/4848-22-0x0000000000E50000-0x0000000000E64000-memory.dmp

Filesize
80KB

Download
memory/4848-21-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4848-19-0x0000000000E90000-0x00000000011DA000-memory.dmp

Filesize
3.3MB

Download
memory/4848-16-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads