formbook | aa207e0f5f2bad97d8a0209d6d5b4583ecb32311aba7c6e996125f0a07c11c02

General

Target

Aquatherm Rechnungen 384890 _Xlxs.exe
Size

606KB
MD5

82015111b3cffed68fee74b525f3265b
SHA1

e43ae387a8bd5ce994a0529b0e1f0bc6c4ae8af3
SHA256

49f8b73df45213da0f86e871fbd8d231cdfcc30e7ef8041d38ef062884e47b2e
SHA512

54d227662a69606f19f23ddea553445f0f0e197928a12f31cbc24864233a63f4ddcab15293567ca051933b3e05180437077ab4b0c3e4895f2b8c39e702db3372

Score

10^/10

formbook k2w persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

3.9

Campaign

k2w

Decoy

brittanybeck.com

idapple.mobi

sharoncement.win

smerchenko.com

citizenssenergygroup.com

landhawktactical.com

yilingshenghuo.com

lifa97.com

8160pe.com

sf-purify.com

bloomingamaizing.com

thymeshares.com

rainwatercollectionhq.com

jaseba.net

whoistom.net

gn70.com

payperclickad.info

jessicagorbet.com

portlockproperty.com

mindset-beratung.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Formbook Payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1280-64-0x00000000000F0000-0x000000000011A000-memory.dmp	formbook

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1716 cmd.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

pid	process
1716	cmd.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

rundll32.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\KZ2LZHMXCN = "C:\\Program Files (x86)\\Ppbctqf\\ThumbCachewxohpht0.exe"	rundll32.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

Aquatherm Rechnungen 384890 _Xlxs.exeAquatherm Rechnungen 384890 _Xlxs.exerundll32.exe

description	pid	process	target process
PID 2024 set thread context of 1312	2024	Aquatherm Rechnungen 384890 _Xlxs.exe	Aquatherm Rechnungen 384890 _Xlxs.exe
PID 1312 set thread context of 1200	1312	Aquatherm Rechnungen 384890 _Xlxs.exe	Explorer.EXE
PID 1280 set thread context of 1200	1280	rundll32.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

rundll32.exe

description ioc process

File opened for modification C:\Program Files (x86)\Ppbctqf\ThumbCachewxohpht0.exe rundll32.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Ppbctqf\ThumbCachewxohpht0.exe	rundll32.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

rundll32.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-2277218442-1199762539-2004043321-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	rundll32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

Processes:

Aquatherm Rechnungen 384890 _Xlxs.exeAquatherm Rechnungen 384890 _Xlxs.exerundll32.exe

pid	process
2024	Aquatherm Rechnungen 384890 _Xlxs.exe
1312	Aquatherm Rechnungen 384890 _Xlxs.exe
1312	Aquatherm Rechnungen 384890 _Xlxs.exe
1280	rundll32.exe
1280	rundll32.exe
1280	rundll32.exe
1280	rundll32.exe
1280	rundll32.exe
1280	rundll32.exe
1280	rundll32.exe
1280	rundll32.exe
1280	rundll32.exe
1280	rundll32.exe
1280	rundll32.exe
1280	rundll32.exe
1280	rundll32.exe
1280	rundll32.exe
1280	rundll32.exe
1280	rundll32.exe
1280	rundll32.exe
1280	rundll32.exe
1280	rundll32.exe
1280	rundll32.exe
1280	rundll32.exe
1280	rundll32.exe
1280	rundll32.exe
1280	rundll32.exe
1280	rundll32.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

Aquatherm Rechnungen 384890 _Xlxs.exeAquatherm Rechnungen 384890 _Xlxs.exerundll32.exe

pid	process
2024	Aquatherm Rechnungen 384890 _Xlxs.exe
1312	Aquatherm Rechnungen 384890 _Xlxs.exe
1312	Aquatherm Rechnungen 384890 _Xlxs.exe
1312	Aquatherm Rechnungen 384890 _Xlxs.exe
1280	rundll32.exe
1280	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Aquatherm Rechnungen 384890 _Xlxs.exerundll32.exe

description pid process

Token: SeDebugPrivilege 1312 Aquatherm Rechnungen 384890 _Xlxs.exe
Token: SeDebugPrivilege 1280 rundll32.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1200 Explorer.EXE
1200 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1200 Explorer.EXE
1200 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1312	Aquatherm Rechnungen 384890 _Xlxs.exe
Token: SeDebugPrivilege	1280	rundll32.exe

pid	process
1200	Explorer.EXE
1200	Explorer.EXE

pid	process
1200	Explorer.EXE
1200	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

Aquatherm Rechnungen 384890 _Xlxs.exeExplorer.EXErundll32.exe

description	pid	process	target process
PID 2024 wrote to memory of 1312	2024	Aquatherm Rechnungen 384890 _Xlxs.exe	Aquatherm Rechnungen 384890 _Xlxs.exe
PID 2024 wrote to memory of 1312	2024	Aquatherm Rechnungen 384890 _Xlxs.exe	Aquatherm Rechnungen 384890 _Xlxs.exe
PID 2024 wrote to memory of 1312	2024	Aquatherm Rechnungen 384890 _Xlxs.exe	Aquatherm Rechnungen 384890 _Xlxs.exe
PID 2024 wrote to memory of 1312	2024	Aquatherm Rechnungen 384890 _Xlxs.exe	Aquatherm Rechnungen 384890 _Xlxs.exe
PID 1200 wrote to memory of 1280	1200	Explorer.EXE	rundll32.exe
PID 1200 wrote to memory of 1280	1200	Explorer.EXE	rundll32.exe
PID 1200 wrote to memory of 1280	1200	Explorer.EXE	rundll32.exe
PID 1200 wrote to memory of 1280	1200	Explorer.EXE	rundll32.exe
PID 1200 wrote to memory of 1280	1200	Explorer.EXE	rundll32.exe
PID 1200 wrote to memory of 1280	1200	Explorer.EXE	rundll32.exe
PID 1200 wrote to memory of 1280	1200	Explorer.EXE	rundll32.exe
PID 1280 wrote to memory of 1716	1280	rundll32.exe	cmd.exe
PID 1280 wrote to memory of 1716	1280	rundll32.exe	cmd.exe
PID 1280 wrote to memory of 1716	1280	rundll32.exe	cmd.exe
PID 1280 wrote to memory of 1716	1280	rundll32.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1200
- C:\Users\Admin\AppData\Local\Temp\Aquatherm Rechnungen 384890 _Xlxs.exe
  "C:\Users\Admin\AppData\Local\Temp\Aquatherm Rechnungen 384890 _Xlxs.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2024
- - C:\Users\Admin\AppData\Local\Temp\Aquatherm Rechnungen 384890 _Xlxs.exe
    "C:\Users\Admin\AppData\Local\Temp\Aquatherm Rechnungen 384890 _Xlxs.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1312
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1316
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\SysWOW64\rundll32.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Drops file in Program Files directory
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1280
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Aquatherm Rechnungen 384890 _Xlxs.exe"
    3⤵
    - Deletes itself
    PID:1716

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\-Q43QPT6\-Q4logim.jpeg

Filesize
65KB

MD5
21d9cd60bda0887cfcddb6628267ef30

SHA1
2ae1437d3d67f8959d1727d5b7710284d10db338

SHA256
37796a846adc02de0806a1cdf21fa733a917a7a40035ef134dff12f44a034823

SHA512
8b6e58665f782a0e207f68cbcca4efd32c1151f4ba6922561ad85824b282560d4d77ab97739f098fc216e44e1e96d15c0a3f95268265df8e97b6fe9cf709cbed

Download Submit
C:\Users\Admin\AppData\Roaming\-Q43QPT6\-Q4logri.ini

Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\-Q43QPT6\-Q4logrv.ini

Filesize
40B

MD5
ba3b6bc807d4f76794c4b81b09bb9ba5

SHA1
24cb89501f0212ff3095ecc0aba97dd563718fb1

SHA256
6eebf968962745b2e9de2ca969af7c424916d4e3fe3cc0bb9b3d414abfce9507

SHA512
ecd07e601fc9e3cfc39addd7bd6f3d7f7ff3253afb40bf536e9eaac5a4c243e5ec40fbfd7b216cb0ea29f2517419601e335e33ba19dea4a46f65e38694d465bf

Download Submit
memory/1200-59-0x0000000006060000-0x00000000061EF000-memory.dmp

Filesize
1.6MB

Download
memory/1200-67-0x0000000004210000-0x00000000042F6000-memory.dmp

Filesize
920KB

Download
memory/1280-63-0x0000000002290000-0x0000000002593000-memory.dmp

Filesize
3.0MB

Download
memory/1280-60-0x0000000000000000-mapping.dmp

Download
memory/1280-62-0x0000000000CF0000-0x0000000000CFE000-memory.dmp

Filesize
56KB

Download
memory/1280-64-0x00000000000F0000-0x000000000011A000-memory.dmp

Filesize
168KB

Download
memory/1280-66-0x0000000000A70000-0x0000000000B03000-memory.dmp

Filesize
588KB

Download
memory/1312-58-0x0000000000340000-0x0000000000354000-memory.dmp

Filesize
80KB

Download
memory/1312-57-0x00000000008C0000-0x0000000000BC3000-memory.dmp

Filesize
3.0MB

Download
memory/1312-55-0x000000000041B6C0-mapping.dmp

Download
memory/1716-65-0x0000000000000000-mapping.dmp

Download
memory/2024-54-0x0000000075B71000-0x0000000075B73000-memory.dmp

Filesize
8KB

Download
memory/2024-56-0x0000000000400000-0x000000000049E000-memory.dmp

Filesize
632KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads