Analysis
-
max time kernel
149s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
26-06-2022 06:02
Static task
static1
Behavioral task
behavioral1
Sample
smss.exe
Resource
win7-20220414-en
General
-
Target
smss.exe
-
Size
473KB
-
MD5
af158cff1deb238eb10b33b07d08a61e
-
SHA1
e0229b402990fad0fe92db278b3f4a3ed7a9767d
-
SHA256
42e5467c1516b5291491f4acbac29889575738c9f0652655ce7b7eeffa2374d4
-
SHA512
7c32eedea122a63ae3f6b1216e8ae9ec8141cf870ac0d456f3d7efe52a5e881253fa07596299d221acc6ff1a46915edcf31952eaee5d389249c309b85ff5f0c2
Malware Config
Extracted
xloader
2.9
iewb
n8FLlgIlb1rSEg5hJ9xMbw4hcmR38Q==
5vIAIY+pt81OtWs+FdIEdk7Y
LHIKc+oWGIQUUlfAAtEEdk7Y
ePM/cX2jvHrS
5hvPEw22+fdvmJz3C8FIVq0=
mb9EeX2jvHrS
Dx2zIYNvfjo8VUo5
6jVPnyJekv2RAc4gLKNwEqQ=
KWatHyjdE5Gj1Ng=
t9lk70gzUAZty4qjbVjF
6eUBeFPzKBWT125BFNIEdk7Y
dZUXOIyqTJGj1Ng=
iL3TVh2Jl5QVStnzxcAhIL8=
J1prtyklUfZGR/xDD71IbkWRd2yx
s9FgCOBRW9bU0Y6jbVjF
RYCbQDzcFBhcylgu
Fl0BV/8RJm6F9QRg8LXXTLo=
0dhumHzrCCZ3wdQg7nFF1AlL6Tk=
xvL+iL6wwX+/wH9K4lbZ/A==
N0lVceIFD5Gj1Ng=
5/mnQbHhJ7IzcYjyQbXXTLo=
luHuIKrfNeUkJOfRV0dA8o3Ghkt95g==
yuh2thpBWtHl2ZV48rXXTLo=
ADcuaODkD5eytord4lbZ/A==
PIWRAgq8/zx4aipDyILc
TdUPJBksRZU=
NorCQjrrH5Gj1Ng=
WXUOku0EDZGj1Ng=
4w8mrX8lanCcoWZLU0SkkkSRd2yx
KIYkq/0QN5gPTFK37XszY0fa
s8lIykhdVZjlEA1g8LXXTLo=
AkBw4LE9RQNHkyRsMQ==
fLzVWEjyMarikyRsMQ==
6j1f2ZsFFRpcylgu
zu3YwbBReoIuUh1vdsGonTCDfw==
EGD0PEju53oDSuwu9765d/4KSkXU3Qxh
rc0aZhksRZU=
Un//ZcCsqyaNtEcnt6mLu7Lqdw==
V4Eqwh4FEHqIflW508EYzYSbOeC5
EiWpwJgAFRV5e1r60cAEdk7Y
VW8Pf9PN65HU1otP4lbZ/A==
FFdOyJcMGxpcylgu
KztLpY85vJkLFw==
yh8vtO4GRPQ2kyRsMQ==
qMfrSiqZvghLUyRy/7XXTLo=
eKTGPwmf3swEq2Y3
aoseYSTrlPsvGQ==
Z6tKw0RfgS5+1o6jbVjF
CyU0azDFBZGj1Ng=
7Cy+5co/ZZbhC8dW6eo=
LXmN0EJimQWHylwnbTS6afIlJZHj+Q==
2R2cFWiX1hlZYz2UKh4i12ikiTP55p5Bfg==
jqHcD+eAi5EYlVrJm0TN
cqO55WilyvQ9mG1P4lbZ/A==
BERqtpY6pZDbB8dW6eo=
VpzDHQBueZvY24qjbVjF
OWUELQ6s28NVxom7evrIPfCLfw==
5iO6Dg619fIVQz+Q3I+ZMdmwry4=
d6GiFh7QJaHO2Jxz8bXXTLo=
NlFh6bdVeihxxT1MH+A+TL3MaA==
0PWJHpPJ9zh3nasMO8FIVq0=
19Fom6FBSQ1QrMU=
aYWBmw6431DfHsdW6eo=
Jj7U++2X3M4Eq2Y3
mounscape.com
Signatures
-
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
-
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
-
Xloader Payload 4 IoCs
Processes:
resource yara_rule behavioral2/memory/1444-136-0x0000000000400000-0x000000000042C000-memory.dmp xloader behavioral2/memory/1444-142-0x0000000000400000-0x000000000042C000-memory.dmp xloader behavioral2/memory/5108-145-0x00000000007C0000-0x00000000007EC000-memory.dmp xloader behavioral2/memory/5108-149-0x00000000007C0000-0x00000000007EC000-memory.dmp xloader -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
smss.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation smss.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
ipconfig.exedescription ioc process Key created \Registry\Machine\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run ipconfig.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\9R9L_RUXZB = "C:\\Program Files (x86)\\Aglj8an\\9rq8pmtp.exe" ipconfig.exe -
Suspicious use of SetThreadContext 3 IoCs
Processes:
smss.exesmss.exeipconfig.exedescription pid process target process PID 3492 set thread context of 1444 3492 smss.exe smss.exe PID 1444 set thread context of 2480 1444 smss.exe Explorer.EXE PID 5108 set thread context of 2480 5108 ipconfig.exe Explorer.EXE -
Drops file in Program Files directory 1 IoCs
Processes:
ipconfig.exedescription ioc process File opened for modification C:\Program Files (x86)\Aglj8an\9rq8pmtp.exe ipconfig.exe -
Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.
Processes:
ipconfig.exepid process 5108 ipconfig.exe -
Processes:
ipconfig.exedescription ioc process Key created \Registry\User\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2 ipconfig.exe -
Suspicious behavior: EnumeratesProcesses 40 IoCs
Processes:
smss.exeipconfig.exepid process 1444 smss.exe 1444 smss.exe 1444 smss.exe 1444 smss.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
Explorer.EXEpid process 2480 Explorer.EXE -
Suspicious behavior: MapViewOfSection 7 IoCs
Processes:
smss.exeipconfig.exepid process 1444 smss.exe 1444 smss.exe 1444 smss.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe 5108 ipconfig.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
smss.exeipconfig.exedescription pid process Token: SeDebugPrivilege 1444 smss.exe Token: SeDebugPrivilege 5108 ipconfig.exe -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
smss.exeExplorer.EXEipconfig.exedescription pid process target process PID 3492 wrote to memory of 1444 3492 smss.exe smss.exe PID 3492 wrote to memory of 1444 3492 smss.exe smss.exe PID 3492 wrote to memory of 1444 3492 smss.exe smss.exe PID 3492 wrote to memory of 1444 3492 smss.exe smss.exe PID 3492 wrote to memory of 1444 3492 smss.exe smss.exe PID 3492 wrote to memory of 1444 3492 smss.exe smss.exe PID 2480 wrote to memory of 5108 2480 Explorer.EXE ipconfig.exe PID 2480 wrote to memory of 5108 2480 Explorer.EXE ipconfig.exe PID 2480 wrote to memory of 5108 2480 Explorer.EXE ipconfig.exe PID 5108 wrote to memory of 812 5108 ipconfig.exe cmd.exe PID 5108 wrote to memory of 812 5108 ipconfig.exe cmd.exe PID 5108 wrote to memory of 812 5108 ipconfig.exe cmd.exe PID 5108 wrote to memory of 4308 5108 ipconfig.exe cmd.exe PID 5108 wrote to memory of 4308 5108 ipconfig.exe cmd.exe PID 5108 wrote to memory of 4308 5108 ipconfig.exe cmd.exe PID 5108 wrote to memory of 4928 5108 ipconfig.exe cmd.exe PID 5108 wrote to memory of 4928 5108 ipconfig.exe cmd.exe PID 5108 wrote to memory of 4928 5108 ipconfig.exe cmd.exe PID 5108 wrote to memory of 4464 5108 ipconfig.exe Firefox.exe PID 5108 wrote to memory of 4464 5108 ipconfig.exe Firefox.exe PID 5108 wrote to memory of 4464 5108 ipconfig.exe Firefox.exe
Processes
-
C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\smss.exe"C:\Users\Admin\AppData\Local\Temp\smss.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\smss.exe"C:\Users\Admin\AppData\Local\Temp\smss.exe"3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\SysWOW64\ipconfig.exe"C:\Windows\SysWOW64\ipconfig.exe"2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Gathers network information
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe/c del "C:\Users\Admin\AppData\Local\Temp\smss.exe"3⤵
-
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" /V3⤵
-
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" /V3⤵
-
C:\Program Files\Mozilla Firefox\Firefox.exe"C:\Program Files\Mozilla Firefox\Firefox.exe"3⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\DB1Filesize
40KB
MD5b608d407fc15adea97c26936bc6f03f6
SHA1953e7420801c76393902c0d6bb56148947e41571
SHA256b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf
SHA512cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4
-
C:\Users\Admin\AppData\Local\Temp\DB1Filesize
48KB
MD5349e6eb110e34a08924d92f6b334801d
SHA1bdfb289daff51890cc71697b6322aa4b35ec9169
SHA256c9fd7be4579e4aa942e8c2b44ab10115fa6c2fe6afd0c584865413d9d53f3b2a
SHA5122a635b815a5e117ea181ee79305ee1baf591459427acc5210d8c6c7e447be3513ead871c605eb3d32e4ab4111b2a335f26520d0ef8c1245a4af44e1faec44574
-
memory/812-143-0x0000000000000000-mapping.dmp
-
memory/1444-136-0x0000000000400000-0x000000000042C000-memory.dmpFilesize
176KB
-
memory/1444-139-0x0000000001C50000-0x0000000001C61000-memory.dmpFilesize
68KB
-
memory/1444-135-0x0000000000000000-mapping.dmp
-
memory/1444-142-0x0000000000400000-0x000000000042C000-memory.dmpFilesize
176KB
-
memory/1444-137-0x0000000001900000-0x0000000001C4A000-memory.dmpFilesize
3.3MB
-
memory/2480-150-0x0000000007F60000-0x00000000080A5000-memory.dmpFilesize
1.3MB
-
memory/2480-140-0x0000000007E30000-0x0000000007F51000-memory.dmpFilesize
1.1MB
-
memory/2480-148-0x0000000007F60000-0x00000000080A5000-memory.dmpFilesize
1.3MB
-
memory/3492-134-0x0000000007BE0000-0x0000000007C7C000-memory.dmpFilesize
624KB
-
memory/3492-131-0x0000000005FB0000-0x0000000006554000-memory.dmpFilesize
5.6MB
-
memory/3492-130-0x0000000000880000-0x00000000008FC000-memory.dmpFilesize
496KB
-
memory/3492-133-0x00000000057B0000-0x00000000057BA000-memory.dmpFilesize
40KB
-
memory/3492-132-0x0000000005A00000-0x0000000005A92000-memory.dmpFilesize
584KB
-
memory/4308-151-0x0000000000000000-mapping.dmp
-
memory/4928-153-0x0000000000000000-mapping.dmp
-
memory/5108-146-0x0000000001100000-0x000000000144A000-memory.dmpFilesize
3.3MB
-
memory/5108-149-0x00000000007C0000-0x00000000007EC000-memory.dmpFilesize
176KB
-
memory/5108-147-0x0000000000F20000-0x0000000000FB0000-memory.dmpFilesize
576KB
-
memory/5108-144-0x00000000003A0000-0x00000000003AB000-memory.dmpFilesize
44KB
-
memory/5108-145-0x00000000007C0000-0x00000000007EC000-memory.dmpFilesize
176KB
-
memory/5108-141-0x0000000000000000-mapping.dmp