Analysis
-
max time kernel
149s -
max time network
145s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
28-06-2022 19:20
Static task
static1
Behavioral task
behavioral1
Sample
tmp.exe
Resource
win7-20220414-en
General
-
Target
tmp.exe
-
Size
533KB
-
MD5
2ca4db9e581608faaacdd0533b4fd783
-
SHA1
78065a3d2fdc96c1c9de15a1ca7e39cd96be1137
-
SHA256
2c6f3126b960f02205390cf54a74de6e32d53cc1d6db64cc4744c9cca63ecca6
-
SHA512
fcd201fd15e2133052b24b786131d0adb877ba979ce3aedfbb52596dd7636ceb7194df7f1acc5a6d8be1d6fd8e1faea152e2073495fbacadf38728dddbafc847
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
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suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
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Xloader Payload 5 IoCs
Processes:
resource yara_rule behavioral1/memory/1736-63-0x0000000000400000-0x000000000042C000-memory.dmp xloader behavioral1/memory/1736-64-0x000000000041F840-mapping.dmp xloader behavioral1/memory/1736-66-0x0000000000400000-0x000000000042C000-memory.dmp xloader behavioral1/memory/1728-72-0x0000000000080000-0x00000000000AC000-memory.dmp xloader behavioral1/memory/1728-78-0x0000000000080000-0x00000000000AC000-memory.dmp xloader -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
tmp.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\International\Geo\Nation tmp.exe -
Deletes itself 1 IoCs
Processes:
cmd.exepid process 1532 cmd.exe -
Loads dropped DLL 1 IoCs
Processes:
wlanext.exepid process 1728 wlanext.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 2 IoCs
Processes:
wlanext.exedescription ioc process Key created \Registry\Machine\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run wlanext.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\8PPDU2E006 = "C:\\Program Files (x86)\\Crfixv4\\vgagzvh.exe" wlanext.exe -
Suspicious use of SetThreadContext 3 IoCs
Processes:
tmp.exetmp.exewlanext.exedescription pid process target process PID 2028 set thread context of 1736 2028 tmp.exe tmp.exe PID 1736 set thread context of 1268 1736 tmp.exe Explorer.EXE PID 1728 set thread context of 1268 1728 wlanext.exe Explorer.EXE -
Drops file in Program Files directory 1 IoCs
Processes:
wlanext.exedescription ioc process File opened for modification C:\Program Files (x86)\Crfixv4\vgagzvh.exe wlanext.exe -
Processes:
wlanext.exedescription ioc process Key created \Registry\User\S-1-5-21-1083475884-596052423-1669053738-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2 wlanext.exe -
Suspicious behavior: EnumeratesProcesses 20 IoCs
Processes:
tmp.exewlanext.exepid process 1736 tmp.exe 1736 tmp.exe 1728 wlanext.exe 1728 wlanext.exe 1728 wlanext.exe 1728 wlanext.exe 1728 wlanext.exe 1728 wlanext.exe 1728 wlanext.exe 1728 wlanext.exe 1728 wlanext.exe 1728 wlanext.exe 1728 wlanext.exe 1728 wlanext.exe 1728 wlanext.exe 1728 wlanext.exe 1728 wlanext.exe 1728 wlanext.exe 1728 wlanext.exe 1728 wlanext.exe -
Suspicious behavior: MapViewOfSection 7 IoCs
Processes:
tmp.exewlanext.exepid process 1736 tmp.exe 1736 tmp.exe 1736 tmp.exe 1728 wlanext.exe 1728 wlanext.exe 1728 wlanext.exe 1728 wlanext.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
tmp.exewlanext.exedescription pid process Token: SeDebugPrivilege 1736 tmp.exe Token: SeDebugPrivilege 1728 wlanext.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
Explorer.EXEpid process 1268 Explorer.EXE 1268 Explorer.EXE -
Suspicious use of SendNotifyMessage 2 IoCs
Processes:
Explorer.EXEpid process 1268 Explorer.EXE 1268 Explorer.EXE -
Suspicious use of WriteProcessMemory 24 IoCs
Processes:
tmp.exeExplorer.EXEwlanext.exedescription pid process target process PID 2028 wrote to memory of 1736 2028 tmp.exe tmp.exe PID 2028 wrote to memory of 1736 2028 tmp.exe tmp.exe PID 2028 wrote to memory of 1736 2028 tmp.exe tmp.exe PID 2028 wrote to memory of 1736 2028 tmp.exe tmp.exe PID 2028 wrote to memory of 1736 2028 tmp.exe tmp.exe PID 2028 wrote to memory of 1736 2028 tmp.exe tmp.exe PID 2028 wrote to memory of 1736 2028 tmp.exe tmp.exe PID 1268 wrote to memory of 1728 1268 Explorer.EXE wlanext.exe PID 1268 wrote to memory of 1728 1268 Explorer.EXE wlanext.exe PID 1268 wrote to memory of 1728 1268 Explorer.EXE wlanext.exe PID 1268 wrote to memory of 1728 1268 Explorer.EXE wlanext.exe PID 1728 wrote to memory of 1532 1728 wlanext.exe cmd.exe PID 1728 wrote to memory of 1532 1728 wlanext.exe cmd.exe PID 1728 wrote to memory of 1532 1728 wlanext.exe cmd.exe PID 1728 wrote to memory of 1532 1728 wlanext.exe cmd.exe PID 1728 wrote to memory of 1540 1728 wlanext.exe Firefox.exe PID 1728 wrote to memory of 1540 1728 wlanext.exe Firefox.exe PID 1728 wrote to memory of 1540 1728 wlanext.exe Firefox.exe PID 1728 wrote to memory of 1540 1728 wlanext.exe Firefox.exe PID 1728 wrote to memory of 1540 1728 wlanext.exe Firefox.exe PID 1728 wrote to memory of 1668 1728 wlanext.exe cmd.exe PID 1728 wrote to memory of 1668 1728 wlanext.exe cmd.exe PID 1728 wrote to memory of 1668 1728 wlanext.exe cmd.exe PID 1728 wrote to memory of 1668 1728 wlanext.exe cmd.exe
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\wlanext.exe"C:\Windows\SysWOW64\wlanext.exe"2⤵
- Loads dropped DLL
- 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
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C:\Windows\SysWOW64\cmd.exe/c del "C:\Users\Admin\AppData\Local\Temp\tmp.exe"3⤵
- Deletes itself
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C:\Program Files\Mozilla Firefox\Firefox.exe"C:\Program Files\Mozilla Firefox\Firefox.exe"3⤵
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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⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\DB1Filesize
40KB
MD5b608d407fc15adea97c26936bc6f03f6
SHA1953e7420801c76393902c0d6bb56148947e41571
SHA256b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf
SHA512cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4
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\Users\Admin\AppData\Local\Temp\sqlite3.dllFilesize
630KB
MD506b455698aba68f911c2f6d17bbefc6a
SHA14116e1345134012a0fc8a84b4bbf6c681621a266
SHA2566d81a69544457d3db38f97932869e0589feed4d7249462cce7aa8b15c6c00bd2
SHA512d64c0219933a0600702d54ca158e794b2784b1040e15d4657d87f46c091ed7ed1addcf3c46859e87c811f5c1543928596990103ae5de29a00eab7999ba7a1b3e
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memory/1268-77-0x0000000004EF0000-0x0000000005023000-memory.dmpFilesize
1.2MB
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memory/1268-80-0x00000000041A0000-0x0000000004253000-memory.dmpFilesize
716KB
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memory/1268-76-0x00000000041A0000-0x0000000004253000-memory.dmpFilesize
716KB
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memory/1268-69-0x0000000004EF0000-0x0000000005023000-memory.dmpFilesize
1.2MB
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memory/1532-73-0x0000000000000000-mapping.dmp
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memory/1668-82-0x0000000000000000-mapping.dmp
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memory/1728-78-0x0000000000080000-0x00000000000AC000-memory.dmpFilesize
176KB
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memory/1728-70-0x0000000000000000-mapping.dmp
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memory/1728-75-0x00000000004C0000-0x0000000000550000-memory.dmpFilesize
576KB
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memory/1728-74-0x0000000002050000-0x0000000002353000-memory.dmpFilesize
3.0MB
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memory/1728-72-0x0000000000080000-0x00000000000AC000-memory.dmpFilesize
176KB
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memory/1728-71-0x0000000000AA0000-0x0000000000AB6000-memory.dmpFilesize
88KB
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memory/1736-60-0x0000000000400000-0x000000000042C000-memory.dmpFilesize
176KB
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memory/1736-68-0x00000000001F0000-0x0000000000201000-memory.dmpFilesize
68KB
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memory/1736-67-0x0000000000A40000-0x0000000000D43000-memory.dmpFilesize
3.0MB
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memory/1736-66-0x0000000000400000-0x000000000042C000-memory.dmpFilesize
176KB
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memory/1736-64-0x000000000041F840-mapping.dmp
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memory/1736-63-0x0000000000400000-0x000000000042C000-memory.dmpFilesize
176KB
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memory/1736-61-0x0000000000400000-0x000000000042C000-memory.dmpFilesize
176KB
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memory/2028-54-0x0000000000820000-0x00000000008AC000-memory.dmpFilesize
560KB
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memory/2028-59-0x0000000001F40000-0x0000000001F72000-memory.dmpFilesize
200KB
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memory/2028-58-0x00000000053D0000-0x000000000543A000-memory.dmpFilesize
424KB
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memory/2028-57-0x0000000000790000-0x000000000079A000-memory.dmpFilesize
40KB
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memory/2028-56-0x0000000000780000-0x0000000000796000-memory.dmpFilesize
88KB
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memory/2028-55-0x0000000076531000-0x0000000076533000-memory.dmpFilesize
8KB