formbook | 575d37d2a63d12c078a3a88c0e514574570ab8be5d92aaaedd1799958e068861

General

Target

dccee7de3f70a3b2a9111139695136f9.exe
Size

193KB
MD5

dccee7de3f70a3b2a9111139695136f9
SHA1

f21532158a6a6a5628c6502fd5fb0ea856474eac
SHA256

575d37d2a63d12c078a3a88c0e514574570ab8be5d92aaaedd1799958e068861
SHA512

3ae0ec5c42869b4fb695f496b223ee5fa750050fe4d48accdd1b7541ab7e6e804d42a1ab565fa14e98ba3b49685594048511bfcc4118485db5b1540829c9fe68

Score

10^/10

formbook xloader arh2 loader persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

xloader

Version

2.6

Campaign

arh2

Decoy

hstorc.com

blackountry.com

dhrbakery.com

dezhouofit.com

defipayout.xyz

ginas4t.com

byzbh63.xyz

qrcrashview.com

mialibaby.com

enhaut.net

samainnova.com

yashveerresort.com

delfos.online

dungcumay.com

lj-counseling.net

fliptheswitch.pro

padogbitelawyer.com

aticarev.com

sederino.site

bestplansforpets-japan3.life

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

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/2224-136-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral2/memory/2224-139-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral2/memory/4720-145-0x00000000006C0000-0x00000000006EB000-memory.dmp	xloader

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

systray.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	systray.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\XRQXV4LX5ZN = "C:\\Program Files (x86)\\Wwl6hz\\tx40kzz8vh4.exe"	systray.exe

Executes dropped EXE 2 IoCs

Processes:

niyjmviian.exeniyjmviian.exe

pid process

4700 niyjmviian.exe
2224 niyjmviian.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
4700	niyjmviian.exe
2224	niyjmviian.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

niyjmviian.exeniyjmviian.exesystray.exe

description	pid	process	target process
PID 4700 set thread context of 2224	4700	niyjmviian.exe	niyjmviian.exe
PID 2224 set thread context of 796	2224	niyjmviian.exe	Explorer.EXE
PID 4720 set thread context of 796	4720	systray.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

systray.exe

description ioc process

File opened for modification C:\Program Files (x86)\Wwl6hz\tx40kzz8vh4.exe systray.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	ioc	process
File opened for modification	C:\Program Files (x86)\Wwl6hz\tx40kzz8vh4.exe	systray.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

systray.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	systray.exe

Suspicious behavior: EnumeratesProcesses 58 IoCs

Processes:

niyjmviian.exesystray.exe

pid	process
2224	niyjmviian.exe
2224	niyjmviian.exe
2224	niyjmviian.exe
2224	niyjmviian.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe
4720	systray.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

796 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

niyjmviian.exesystray.exe

pid process

2224 niyjmviian.exe
2224 niyjmviian.exe
2224 niyjmviian.exe
4720 systray.exe
4720 systray.exe
4720 systray.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

niyjmviian.exesystray.exe

description pid process

Token: SeDebugPrivilege 2224 niyjmviian.exe
Token: SeDebugPrivilege 4720 systray.exe

pid	process
796	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	2224	niyjmviian.exe
Token: SeDebugPrivilege	4720	systray.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

dccee7de3f70a3b2a9111139695136f9.exeniyjmviian.exeExplorer.EXEsystray.exe

description	pid	process	target process
PID 1164 wrote to memory of 4700	1164	dccee7de3f70a3b2a9111139695136f9.exe	niyjmviian.exe
PID 1164 wrote to memory of 4700	1164	dccee7de3f70a3b2a9111139695136f9.exe	niyjmviian.exe
PID 1164 wrote to memory of 4700	1164	dccee7de3f70a3b2a9111139695136f9.exe	niyjmviian.exe
PID 4700 wrote to memory of 2224	4700	niyjmviian.exe	niyjmviian.exe
PID 4700 wrote to memory of 2224	4700	niyjmviian.exe	niyjmviian.exe
PID 4700 wrote to memory of 2224	4700	niyjmviian.exe	niyjmviian.exe
PID 4700 wrote to memory of 2224	4700	niyjmviian.exe	niyjmviian.exe
PID 4700 wrote to memory of 2224	4700	niyjmviian.exe	niyjmviian.exe
PID 4700 wrote to memory of 2224	4700	niyjmviian.exe	niyjmviian.exe
PID 796 wrote to memory of 4720	796	Explorer.EXE	systray.exe
PID 796 wrote to memory of 4720	796	Explorer.EXE	systray.exe
PID 796 wrote to memory of 4720	796	Explorer.EXE	systray.exe
PID 4720 wrote to memory of 4060	4720	systray.exe	cmd.exe
PID 4720 wrote to memory of 4060	4720	systray.exe	cmd.exe
PID 4720 wrote to memory of 4060	4720	systray.exe	cmd.exe
PID 4720 wrote to memory of 1812	4720	systray.exe	cmd.exe
PID 4720 wrote to memory of 1812	4720	systray.exe	cmd.exe
PID 4720 wrote to memory of 1812	4720	systray.exe	cmd.exe
PID 4720 wrote to memory of 4716	4720	systray.exe	cmd.exe
PID 4720 wrote to memory of 4716	4720	systray.exe	cmd.exe
PID 4720 wrote to memory of 4716	4720	systray.exe	cmd.exe
PID 4720 wrote to memory of 700	4720	systray.exe	Firefox.exe
PID 4720 wrote to memory of 700	4720	systray.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:796

C:\Users\Admin\AppData\Local\Temp\dccee7de3f70a3b2a9111139695136f9.exe
"C:\Users\Admin\AppData\Local\Temp\dccee7de3f70a3b2a9111139695136f9.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:1164

C:\Users\Admin\AppData\Local\Temp\niyjmviian.exe
C:\Users\Admin\AppData\Local\Temp\niyjmviian.exe C:\Users\Admin\AppData\Local\Temp\xvwwnal
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4700

C:\Users\Admin\AppData\Local\Temp\niyjmviian.exe
C:\Users\Admin\AppData\Local\Temp\niyjmviian.exe C:\Users\Admin\AppData\Local\Temp\xvwwnal
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2224

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:852

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:4564

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:4480

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:3432

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:3208

C:\Windows\SysWOW64\systray.exe
"C:\Windows\SysWOW64\systray.exe"
2⤵
- Adds policy 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:4720

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\niyjmviian.exe"
3⤵
PID:4060

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:1812

C:\Windows\SysWOW64\cmd.exe
/c copy "C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
3⤵
PID:4716

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:700

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\6taly34i0el
Filesize
171KB

MD5
99383e16870e28b1b03964f06fdb7cea

SHA1
864f8e69ab9cd09cd4e8292015d5b92ee92968ac

SHA256
f0f15c7524588f529068abc001dcccb5610fd22ee46672c63cf30b477289b12c

SHA512
343957be37b3722a8ba2d821d1ffc823e54e192e3375a52b3754328b6528ceb2db44396fda607551c109811ec4f861233207ed5a47336b8e4e6da77adccc1e45

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

MD5
b608d407fc15adea97c26936bc6f03f6

SHA1
953e7420801c76393902c0d6bb56148947e41571

SHA256
b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf

SHA512
cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

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C:\Users\Admin\AppData\Local\Temp\DB1
Filesize
48KB

MD5
349e6eb110e34a08924d92f6b334801d

SHA1
bdfb289daff51890cc71697b6322aa4b35ec9169

SHA256
c9fd7be4579e4aa942e8c2b44ab10115fa6c2fe6afd0c584865413d9d53f3b2a

SHA512
2a635b815a5e117ea181ee79305ee1baf591459427acc5210d8c6c7e447be3513ead871c605eb3d32e4ab4111b2a335f26520d0ef8c1245a4af44e1faec44574

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C:\Users\Admin\AppData\Local\Temp\niyjmviian.exe
Filesize
3KB

MD5
98e1c3f5c2e363655e070ea79c073ac5

SHA1
8d803bfc4a033385ec3ec6f2d0775ee4bf23af7a

SHA256
0d840a7ff498f605f00da629efd82349245061d45599e2cc080ddf9827048d28

SHA512
7e71dfbb7f9114f328a367a661d67597ab02d871419689c250c105780b251154c7cc7d60c00fac9fac62f1a3a3b5a6e61437d49673ac95e721e041b52bf5be94

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C:\Users\Admin\AppData\Local\Temp\niyjmviian.exe
Filesize
3KB

MD5
98e1c3f5c2e363655e070ea79c073ac5

SHA1
8d803bfc4a033385ec3ec6f2d0775ee4bf23af7a

SHA256
0d840a7ff498f605f00da629efd82349245061d45599e2cc080ddf9827048d28

SHA512
7e71dfbb7f9114f328a367a661d67597ab02d871419689c250c105780b251154c7cc7d60c00fac9fac62f1a3a3b5a6e61437d49673ac95e721e041b52bf5be94

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C:\Users\Admin\AppData\Local\Temp\niyjmviian.exe
Filesize
3KB

MD5
98e1c3f5c2e363655e070ea79c073ac5

SHA1
8d803bfc4a033385ec3ec6f2d0775ee4bf23af7a

SHA256
0d840a7ff498f605f00da629efd82349245061d45599e2cc080ddf9827048d28

SHA512
7e71dfbb7f9114f328a367a661d67597ab02d871419689c250c105780b251154c7cc7d60c00fac9fac62f1a3a3b5a6e61437d49673ac95e721e041b52bf5be94

Download Submit
C:\Users\Admin\AppData\Local\Temp\xvwwnal
Filesize
4KB

MD5
2ebd7a077dc151c5c190924777abf8c5

SHA1
82715ed044e3b46719eb473b374afff8268bbc93

SHA256
a65f2f6fbdf7f883031b94051069f7a442013b4b38ee16cc9963ef796fe81d22

SHA512
d4fa231d6ab7cee78291eee0cf11370a16078a6ab396bc6c5097b2380107490f6b67452f7eea5f0b91bba431155f905541c52c2eaefe9f2738892d253a4f6ba8

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memory/796-142-0x0000000002CB0000-0x0000000002E46000-memory.dmp

Filesize
1.6MB

Download
memory/796-149-0x00000000085C0000-0x00000000086E2000-memory.dmp

Filesize
1.1MB

Download
memory/1812-150-0x0000000000000000-mapping.dmp

Download
memory/2224-141-0x00000000009C0000-0x00000000009D1000-memory.dmp

Filesize
68KB

Download
memory/2224-140-0x0000000000A20000-0x0000000000D6A000-memory.dmp

Filesize
3.3MB

Download
memory/2224-139-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/2224-136-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/2224-135-0x0000000000000000-mapping.dmp

Download
memory/4060-147-0x0000000000000000-mapping.dmp

Download
memory/4700-130-0x0000000000000000-mapping.dmp

Download
memory/4716-152-0x0000000000000000-mapping.dmp

Download
memory/4720-143-0x0000000000000000-mapping.dmp

Download
memory/4720-145-0x00000000006C0000-0x00000000006EB000-memory.dmp

Filesize
172KB

Download
memory/4720-144-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4720-146-0x00000000025A0000-0x00000000028EA000-memory.dmp

Filesize
3.3MB

Download
memory/4720-148-0x00000000023D0000-0x0000000002460000-memory.dmp

Filesize
576KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads