formbook | 0be2b3666584ba80d0c8ae2606b95be719dc38fbb04a6059cc34529825996d53

General

Target

Scan_order9215060196.exe
Size

327KB
MD5

3902d05dd23263e123e94136dbde2f38
SHA1

a106c76ed170064b60a541a4533b2610e7e652df
SHA256

896745863d78a02b1cf02565dbeb3bca4bfd156a1079d28c07ddfb2d8b9fc665
SHA512

1900a2b722bc099bf4733c412db310916a4258b6482d6676a47332983c299d03a89e04f8614f49be3bd43ee464aef7d3ac66f6c5bf378601b7f77e06c969c881

Score

10^/10

formbook xloader war0 loader persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

xloader

Version

2.0

Campaign

war0

Decoy

siompany.net

55667879.com

smallmouth.net

fordforlano.net

placadesilicon.com

btw-butler.com

almbeauty.com

jbthomson.com

presidentialtennessee.com

chiropractorinnorthport.com

yourber.com

get-luxurycruise.rocks

strakellc.com

eukncg.info

pablovergara.info

sologoods.com

toledovista.com

weightlosscoffees.com

echoawyer.com

csproductionsmedia.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata

Xloader Payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3824-136-0x0000000000400000-0x0000000000427000-memory.dmp	xloader
behavioral2/memory/4400-143-0x0000000000FB0000-0x0000000000FD7000-memory.dmp	xloader

Executes dropped EXE 1 IoCs

Processes:

xzjts2ylt.exe

pid process

1760 xzjts2ylt.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
1760	xzjts2ylt.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

cmd.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	cmd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\4HM8BXBPTHI = "C:\\Program Files (x86)\\To2ktgh\\xzjts2ylt.exe"	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

Scan_order9215060196.exeScan_order9215060196.execmd.exe

description	pid	process	target process
PID 2340 set thread context of 3824	2340	Scan_order9215060196.exe	Scan_order9215060196.exe
PID 3824 set thread context of 8	3824	Scan_order9215060196.exe	Explorer.EXE
PID 4400 set thread context of 8	4400	cmd.exe	Explorer.EXE

Drops file in Program Files directory 4 IoCs

Processes:

Explorer.EXEcmd.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\To2ktgh\xzjts2ylt.exe	Explorer.EXE
File opened for modification	C:\Program Files (x86)\To2ktgh\xzjts2ylt.exe	cmd.exe
File opened for modification	C:\Program Files (x86)\To2ktgh	Explorer.EXE
File created	C:\Program Files (x86)\To2ktgh\xzjts2ylt.exe	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

cmd.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cmd.exe

Suspicious behavior: EnumeratesProcesses 44 IoCs

Processes:

Scan_order9215060196.execmd.exe

pid	process
3824	Scan_order9215060196.exe
3824	Scan_order9215060196.exe
3824	Scan_order9215060196.exe
3824	Scan_order9215060196.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe
4400	cmd.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

8 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

Scan_order9215060196.execmd.exe

pid process

3824 Scan_order9215060196.exe
3824 Scan_order9215060196.exe
3824 Scan_order9215060196.exe
4400 cmd.exe
4400 cmd.exe
4400 cmd.exe
4400 cmd.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Scan_order9215060196.execmd.exe

description pid process

Token: SeDebugPrivilege 3824 Scan_order9215060196.exe
Token: SeDebugPrivilege 4400 cmd.exe

pid	process
8	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	3824	Scan_order9215060196.exe
Token: SeDebugPrivilege	4400	cmd.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

Scan_order9215060196.exeExplorer.EXEcmd.exe

description	pid	process	target process
PID 2340 wrote to memory of 3824	2340	Scan_order9215060196.exe	Scan_order9215060196.exe
PID 2340 wrote to memory of 3824	2340	Scan_order9215060196.exe	Scan_order9215060196.exe
PID 2340 wrote to memory of 3824	2340	Scan_order9215060196.exe	Scan_order9215060196.exe
PID 2340 wrote to memory of 3824	2340	Scan_order9215060196.exe	Scan_order9215060196.exe
PID 2340 wrote to memory of 3824	2340	Scan_order9215060196.exe	Scan_order9215060196.exe
PID 2340 wrote to memory of 3824	2340	Scan_order9215060196.exe	Scan_order9215060196.exe
PID 8 wrote to memory of 4400	8	Explorer.EXE	cmd.exe
PID 8 wrote to memory of 4400	8	Explorer.EXE	cmd.exe
PID 8 wrote to memory of 4400	8	Explorer.EXE	cmd.exe
PID 4400 wrote to memory of 3992	4400	cmd.exe	cmd.exe
PID 4400 wrote to memory of 3992	4400	cmd.exe	cmd.exe
PID 4400 wrote to memory of 3992	4400	cmd.exe	cmd.exe
PID 4400 wrote to memory of 1156	4400	cmd.exe	cmd.exe
PID 4400 wrote to memory of 1156	4400	cmd.exe	cmd.exe
PID 4400 wrote to memory of 1156	4400	cmd.exe	cmd.exe
PID 4400 wrote to memory of 4516	4400	cmd.exe	Firefox.exe
PID 4400 wrote to memory of 4516	4400	cmd.exe	Firefox.exe
PID 4400 wrote to memory of 4516	4400	cmd.exe	Firefox.exe
PID 8 wrote to memory of 1760	8	Explorer.EXE	xzjts2ylt.exe
PID 8 wrote to memory of 1760	8	Explorer.EXE	xzjts2ylt.exe
PID 8 wrote to memory of 1760	8	Explorer.EXE	xzjts2ylt.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Drops file in Program Files directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:8

C:\Users\Admin\AppData\Local\Temp\Scan_order9215060196.exe
"C:\Users\Admin\AppData\Local\Temp\Scan_order9215060196.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2340

C:\Users\Admin\AppData\Local\Temp\Scan_order9215060196.exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:3824

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\SysWOW64\cmd.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:4400

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Scan_order9215060196.exe"
3⤵
PID:3992

C:\Windows\SysWOW64\cmd.exe
/c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
3⤵
PID:1156

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:4516

C:\Program Files (x86)\To2ktgh\xzjts2ylt.exe
"C:\Program Files (x86)\To2ktgh\xzjts2ylt.exe"
2⤵
- Executes dropped EXE
PID:1760

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

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Downloads

C:\Program Files (x86)\To2ktgh\xzjts2ylt.exe
Filesize
327KB

MD5
3902d05dd23263e123e94136dbde2f38

SHA1
a106c76ed170064b60a541a4533b2610e7e652df

SHA256
896745863d78a02b1cf02565dbeb3bca4bfd156a1079d28c07ddfb2d8b9fc665

SHA512
1900a2b722bc099bf4733c412db310916a4258b6482d6676a47332983c299d03a89e04f8614f49be3bd43ee464aef7d3ac66f6c5bf378601b7f77e06c969c881

Download Submit
C:\Program Files (x86)\To2ktgh\xzjts2ylt.exe
Filesize
327KB

MD5
3902d05dd23263e123e94136dbde2f38

SHA1
a106c76ed170064b60a541a4533b2610e7e652df

SHA256
896745863d78a02b1cf02565dbeb3bca4bfd156a1079d28c07ddfb2d8b9fc665

SHA512
1900a2b722bc099bf4733c412db310916a4258b6482d6676a47332983c299d03a89e04f8614f49be3bd43ee464aef7d3ac66f6c5bf378601b7f77e06c969c881

Download Submit
C:\Users\Admin\AppData\Local\Temp\DB1
Filesize
40KB

MD5
b608d407fc15adea97c26936bc6f03f6

SHA1
953e7420801c76393902c0d6bb56148947e41571

SHA256
b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf

SHA512
cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

Download Submit
memory/8-140-0x00000000087B0000-0x0000000008903000-memory.dmp

Filesize
1.3MB

Download
memory/8-147-0x0000000003250000-0x00000000032F4000-memory.dmp

Filesize
656KB

Download
memory/1156-148-0x0000000000000000-mapping.dmp

Download
memory/1760-150-0x0000000000000000-mapping.dmp

Download
memory/2340-134-0x0000000007E90000-0x0000000007F2C000-memory.dmp

Filesize
624KB

Download
memory/2340-130-0x0000000000B20000-0x0000000000B78000-memory.dmp

Filesize
352KB

Download
memory/2340-133-0x00000000056C0000-0x00000000056CA000-memory.dmp

Filesize
40KB

Download
memory/2340-132-0x0000000005520000-0x00000000055B2000-memory.dmp

Filesize
584KB

Download
memory/2340-131-0x00000000059F0000-0x0000000005F94000-memory.dmp

Filesize
5.6MB

Download
memory/3824-139-0x0000000000FF0000-0x0000000001000000-memory.dmp

Filesize
64KB

Download
memory/3824-138-0x0000000001940000-0x0000000001C8A000-memory.dmp

Filesize
3.3MB

Download
memory/3824-136-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/3824-135-0x0000000000000000-mapping.dmp

Download
memory/3992-144-0x0000000000000000-mapping.dmp

Download
memory/4400-141-0x0000000000000000-mapping.dmp

Download
memory/4400-146-0x0000000001A00000-0x0000000001A8F000-memory.dmp

Filesize
572KB

Download
memory/4400-145-0x0000000001C60000-0x0000000001FAA000-memory.dmp

Filesize
3.3MB

Download
memory/4400-143-0x0000000000FB0000-0x0000000000FD7000-memory.dmp

Filesize
156KB

Download
memory/4400-142-0x00000000001F0000-0x000000000024A000-memory.dmp

Filesize
360KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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