Analysis
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max time kernel
10s -
max time network
104s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
31-03-2021 07:02
Static task
static1
Behavioral task
behavioral1
Sample
BillOfLading.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
BillOfLading.exe
Resource
win10v20201028
General
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Target
BillOfLading.exe
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Size
260KB
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MD5
a27e08ddf60d5403c02a482a8c3885ac
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SHA1
8d98313ff780d8d8c2d779ce5022cc03d72f606b
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SHA256
c0ff93ef4930a7dc2d95a6ee490fecdddcbe946e479b1d4fdb47285245b28675
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SHA512
d1d30f1599bfc58a26d25eb641ccc152924fb0cbce253c7c599b5183d3dcf7fb31d80fa75277221895e7526bdbe4ec7c080267340a0649001e6bd28614f31f36
Malware Config
Extracted
oski
http://45.85.90.220
Signatures
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Oski
Oski is an infostealer targeting browser data, crypto wallets.
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Downloads MZ/PE file
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Loads dropped DLL 4 IoCs
Processes:
BillOfLading.exeBillOfLading.exepid process 4764 BillOfLading.exe 968 BillOfLading.exe 968 BillOfLading.exe 968 BillOfLading.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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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of SetThreadContext 1 IoCs
Processes:
BillOfLading.exedescription pid process target process PID 4764 set thread context of 968 4764 BillOfLading.exe BillOfLading.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
BillOfLading.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString BillOfLading.exe -
Kills process with taskkill 1 IoCs
Processes:
taskkill.exepid process 816 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
BillOfLading.exepid process 4764 BillOfLading.exe 4764 BillOfLading.exe 4764 BillOfLading.exe 4764 BillOfLading.exe 4764 BillOfLading.exe 4764 BillOfLading.exe 4764 BillOfLading.exe 4764 BillOfLading.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
BillOfLading.exepid process 4764 BillOfLading.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 816 taskkill.exe -
Suspicious use of WriteProcessMemory 10 IoCs
Processes:
BillOfLading.exeBillOfLading.execmd.exedescription pid process target process PID 4764 wrote to memory of 968 4764 BillOfLading.exe BillOfLading.exe PID 4764 wrote to memory of 968 4764 BillOfLading.exe BillOfLading.exe PID 4764 wrote to memory of 968 4764 BillOfLading.exe BillOfLading.exe PID 4764 wrote to memory of 968 4764 BillOfLading.exe BillOfLading.exe PID 968 wrote to memory of 500 968 BillOfLading.exe cmd.exe PID 968 wrote to memory of 500 968 BillOfLading.exe cmd.exe PID 968 wrote to memory of 500 968 BillOfLading.exe cmd.exe PID 500 wrote to memory of 816 500 cmd.exe taskkill.exe PID 500 wrote to memory of 816 500 cmd.exe taskkill.exe PID 500 wrote to memory of 816 500 cmd.exe taskkill.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\BillOfLading.exe"C:\Users\Admin\AppData\Local\Temp\BillOfLading.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\BillOfLading.exe"C:\Users\Admin\AppData\Local\Temp\BillOfLading.exe"2⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /pid 968 & erase C:\Users\Admin\AppData\Local\Temp\BillOfLading.exe & RD /S /Q C:\\ProgramData\\307685966057087\\* & exit3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\taskkill.exetaskkill /pid 9684⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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\ProgramData\mozglue.dllMD5
8f73c08a9660691143661bf7332c3c27
SHA137fa65dd737c50fda710fdbde89e51374d0c204a
SHA2563fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA5120042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
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\ProgramData\nss3.dllMD5
bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
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\ProgramData\sqlite3.dllMD5
e477a96c8f2b18d6b5c27bde49c990bf
SHA1e980c9bf41330d1e5bd04556db4646a0210f7409
SHA25616574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660
SHA512335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c
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\Users\Admin\AppData\Local\Temp\nse5EA1.tmp\l4vn4lfzlo.dllMD5
be76eceef9eb180ee0ecc4b9612c7018
SHA171ce8a43f681f5183b7f885fcd3724b17dba474c
SHA256ee0e9a405375d69c265df17780129ff1035a0ac492214f8d1a901fee7eea0d31
SHA51234b79778dce67bb0b6b6b293c6eef1e4ed1dcc8948604e8fca8a117e54cc9008c50d322bacbba1fb43baf988629eef9afb87ef4d3761c900459a761e67b65c4a
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memory/500-8-0x0000000000000000-mapping.dmp
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memory/816-9-0x0000000000000000-mapping.dmp
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memory/968-3-0x000000000040717B-mapping.dmp
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memory/968-4-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB