Behavioral task
behavioral1
Sample
c9f5b2db47aac47ebf0f97b3dc87dc561d74be72fe62777b46627a1c238b26e2.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
c9f5b2db47aac47ebf0f97b3dc87dc561d74be72fe62777b46627a1c238b26e2.exe
Resource
win10v2004-20240426-en
General
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Target
c9f5b2db47aac47ebf0f97b3dc87dc561d74be72fe62777b46627a1c238b26e2
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Size
5.0MB
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MD5
e39c01d351fce2cfe103d05d60df037b
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SHA1
5d131a187da93c0fab413162057f4f04e5eae908
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SHA256
c9f5b2db47aac47ebf0f97b3dc87dc561d74be72fe62777b46627a1c238b26e2
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SHA512
0ba168fbfb70b38cc841304f1636320aa27c9b686cfc7eb8c53122bc5987f31099e6fc20fbedcd88e09374073aafe0fec616cf18d3e9adb4eb3289878d8d10ff
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SSDEEP
49152:r56uL3pgrCEdMKPFotsgEBr6GjvzW+UBA3Gd7po52xWKQY2v2V6liK1uOCeXvpnt:r56utgpPFotBER/mQ32lUn
Malware Config
Extracted
cobaltstrike
0
http://ns7.softline.top:443/s/ref=nb_sb_noss_1/167-3294888-0262949/field-keywords=books
http://ns8.softline.top:443/s/ref=nb_sb_noss_1/167-3294888-0262949/field-keywords=books
http://ns9.softline.top:443/s/ref=nb_sb_noss_1/167-3294888-0262949/field-keywords=books
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access_type
512
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beacon_type
256
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create_remote_thread
768
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crypto_scheme
256
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host
ns7.softline.top,/s/ref=nb_sb_noss_1/167-3294888-0262949/field-keywords=books,ns8.softline.top,/s/ref=nb_sb_noss_1/167-3294888-0262949/field-keywords=books,ns9.softline.top,/s/ref=nb_sb_noss_1/167-3294888-0262949/field-keywords=books
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http_header1
AAAACgAAAAtBY2NlcHQ6ICovKgAAAAoAAAAUSG9zdDogd3d3LmFtYXpvbi5jb20AAAAHAAAAAAAAAAMAAAACAAAADnNlc3Npb24tdG9rZW49AAAAAgAAAAxza2luPW5vc2tpbjsAAAABAAAALGNzbS1oaXQ9cy0yNEtVMTFCQjgyUlpTWUdKM0JES3wxNDE5ODk5MDEyOTk2AAAABgAAAAZDb29raWUAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
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http_header2
AAAACgAAAAtBY2NlcHQ6ICovKgAAAAoAAAAWQ29udGVudC1UeXBlOiB0ZXh0L3htbAAAAAoAAAAgWC1SZXF1ZXN0ZWQtV2l0aDogWE1MSHR0cFJlcXVlc3QAAAAKAAAAFEhvc3Q6IHd3dy5hbWF6b24uY29tAAAACQAAAApzej0xNjB4NjAwAAAACQAAABFvZT1vZT1JU08tODg1OS0xOwAAAAcAAAAAAAAABQAAAAJzbgAAAAkAAAAGcz0zNzE3AAAACQAAACJkY19yZWY9aHR0cCUzQSUyRiUyRnd3dy5hbWF6b24uY29tAAAABwAAAAEAAAADAAAABAAAAAAAAA==
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http_method1
GET
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http_method2
POST
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maxdns
255
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pipe_name
\\%s\pipe\msagent_%x
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polling_time
5000
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port_number
443
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sc_process32
%windir%\syswow64\rundll32.exe
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sc_process64
%windir%\sysnative\rundll32.exe
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state_machine
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDI579oVVII0cYncGonU6vTWyFhqmq8w5QwvI8qsoWeV68Ngy+MjNPX2crcSVVWKQ3j09FII28KTmoE1XFVjEXF3WytRSlDe1OKfOAHX3XYkS9LcUAy0eRl2h4a73hrg1ir/rpisNT6hHtYaK3tmH8DgW/n1XfTfbWk1MZ7cXQHWQIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
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unknown1
4096
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unknown2
AAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
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uri
/N4215/adj/amzn.us.sr.aps
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user_agent
Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko
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watermark
0
Signatures
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Cobalt Strike reflective loader 1 IoCs
Detects the reflective loader used by Cobalt Strike.
resource yara_rule sample cobalt_reflective_dll -
Cobaltstrike family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource c9f5b2db47aac47ebf0f97b3dc87dc561d74be72fe62777b46627a1c238b26e2
Files
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c9f5b2db47aac47ebf0f97b3dc87dc561d74be72fe62777b46627a1c238b26e2.exe windows:4 windows x86 arch:x86
96c44fa1eee2c4e9b9e77d7bf42d59e6
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DEBUG_STRIPPED
Imports
winmm
timeEndPeriod
timeBeginPeriod
ws2_32
WSAGetOverlappedResult
kernel32
WriteFile
WriteConsoleW
WaitForSingleObject
VirtualFree
VirtualAlloc
SwitchToThread
SetWaitableTimer
SetUnhandledExceptionFilter
SetProcessPriorityBoost
SetEvent
SetErrorMode
SetConsoleCtrlHandler
LoadLibraryA
LoadLibraryW
GetSystemInfo
GetStdHandle
GetQueuedCompletionStatus
GetProcessAffinityMask
GetProcAddress
GetEnvironmentStringsW
GetConsoleMode
FreeEnvironmentStringsW
ExitProcess
DuplicateHandle
CreateThread
CreateIoCompletionPort
CreateEventA
CloseHandle
AddVectoredExceptionHandler
Sections
.text Size: 2.9MB - Virtual size: 2.9MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 192KB - Virtual size: 281KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
/4 Size: 512B - Virtual size: 278B
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/18 Size: 183KB - Virtual size: 183KB
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/30 Size: 148KB - Virtual size: 147KB
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/43 Size: 76KB - Virtual size: 76KB
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/59 Size: 123KB - Virtual size: 123KB
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/75 Size: 512B - Virtual size: 32B
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/90 Size: 512B - Virtual size: 34B
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/109 Size: 749KB - Virtual size: 748KB
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
.idata Size: 1024B - Virtual size: 882B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.symtab Size: 317KB - Virtual size: 316KB
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
.rsrc Size: 95KB - Virtual size: 94KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE