Analysis
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max time kernel
48s -
max time network
119s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
06-05-2021 21:33
Static task
static1
Behavioral task
behavioral1
Sample
New Order Requirement 2204.exe
Resource
win7v20210410
General
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Target
New Order Requirement 2204.exe
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Size
682KB
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MD5
75fd9a98ffabdc6cd2932e48affa2fa4
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SHA1
73d99f7c741ef7648002534addd4948098d0a1db
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SHA256
7d449aa7f0c8097671688a2636f7b2d748f5ee3e4e63de3447d903fd371533f0
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SHA512
3b1488c7d4d6368c36efc86ad321859317b1d388f4d98bcb18ff129fedb81fd766890761def4754596a6dc5aa31e69221bea6410afe7139a3127983cd4cb23d2
Malware Config
Extracted
oski
45.144.225.173
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 3 IoCs
Processes:
New Order Requirement 2204.exepid process 1172 New Order Requirement 2204.exe 1172 New Order Requirement 2204.exe 1172 New Order Requirement 2204.exe -
Obfuscated with Agile.Net obfuscator 1 IoCs
Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.
Processes:
resource yara_rule behavioral2/memory/3212-122-0x0000000006820000-0x0000000006841000-memory.dmp agile_net -
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:
New Order Requirement 2204.exedescription pid process target process PID 3212 set thread context of 1172 3212 New Order Requirement 2204.exe New Order Requirement 2204.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:
New Order Requirement 2204.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString New Order Requirement 2204.exe -
Kills process with taskkill 1 IoCs
Processes:
taskkill.exepid process 1584 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
New Order Requirement 2204.exepid process 3212 New Order Requirement 2204.exe 3212 New Order Requirement 2204.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
New Order Requirement 2204.exetaskkill.exedescription pid process Token: SeDebugPrivilege 3212 New Order Requirement 2204.exe Token: SeDebugPrivilege 1584 taskkill.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
New Order Requirement 2204.exeNew Order Requirement 2204.execmd.exedescription pid process target process PID 3212 wrote to memory of 1172 3212 New Order Requirement 2204.exe New Order Requirement 2204.exe PID 3212 wrote to memory of 1172 3212 New Order Requirement 2204.exe New Order Requirement 2204.exe PID 3212 wrote to memory of 1172 3212 New Order Requirement 2204.exe New Order Requirement 2204.exe PID 3212 wrote to memory of 1172 3212 New Order Requirement 2204.exe New Order Requirement 2204.exe PID 3212 wrote to memory of 1172 3212 New Order Requirement 2204.exe New Order Requirement 2204.exe PID 3212 wrote to memory of 1172 3212 New Order Requirement 2204.exe New Order Requirement 2204.exe PID 3212 wrote to memory of 1172 3212 New Order Requirement 2204.exe New Order Requirement 2204.exe PID 3212 wrote to memory of 1172 3212 New Order Requirement 2204.exe New Order Requirement 2204.exe PID 3212 wrote to memory of 1172 3212 New Order Requirement 2204.exe New Order Requirement 2204.exe PID 1172 wrote to memory of 3764 1172 New Order Requirement 2204.exe cmd.exe PID 1172 wrote to memory of 3764 1172 New Order Requirement 2204.exe cmd.exe PID 1172 wrote to memory of 3764 1172 New Order Requirement 2204.exe cmd.exe PID 3764 wrote to memory of 1584 3764 cmd.exe taskkill.exe PID 3764 wrote to memory of 1584 3764 cmd.exe taskkill.exe PID 3764 wrote to memory of 1584 3764 cmd.exe taskkill.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\New Order Requirement 2204.exe"C:\Users\Admin\AppData\Local\Temp\New Order Requirement 2204.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\New Order Requirement 2204.exe"C:\Users\Admin\AppData\Local\Temp\New Order Requirement 2204.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 1172 & erase C:\Users\Admin\AppData\Local\Temp\New Order Requirement 2204.exe & RD /S /Q C:\\ProgramData\\784711514319613\\* & exit3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\taskkill.exetaskkill /pid 11724⤵
- 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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memory/1172-128-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1172-130-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1172-129-0x000000000040717B-mapping.dmp
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memory/1584-135-0x0000000000000000-mapping.dmp
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memory/3212-120-0x0000000005C90000-0x0000000005C91000-memory.dmpFilesize
4KB
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memory/3212-124-0x00000000067E0000-0x00000000067E1000-memory.dmpFilesize
4KB
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memory/3212-125-0x0000000005C91000-0x0000000005C92000-memory.dmpFilesize
4KB
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memory/3212-126-0x0000000006FA0000-0x0000000006FAB000-memory.dmpFilesize
44KB
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memory/3212-127-0x0000000009590000-0x0000000009591000-memory.dmpFilesize
4KB
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memory/3212-123-0x00000000068F0000-0x00000000068F1000-memory.dmpFilesize
4KB
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memory/3212-122-0x0000000006820000-0x0000000006841000-memory.dmpFilesize
132KB
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memory/3212-114-0x0000000000760000-0x0000000000761000-memory.dmpFilesize
4KB
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memory/3212-119-0x00000000054C0000-0x00000000054C1000-memory.dmpFilesize
4KB
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memory/3212-118-0x0000000005170000-0x0000000005171000-memory.dmpFilesize
4KB
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memory/3212-117-0x00000000050D0000-0x00000000050D1000-memory.dmpFilesize
4KB
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memory/3212-116-0x00000000055D0000-0x00000000055D1000-memory.dmpFilesize
4KB
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memory/3764-134-0x0000000000000000-mapping.dmp