Analysis
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max time kernel
148s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20220718-en -
resource tags
arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system -
submitted
09-08-2022 16:16
Static task
static1
Behavioral task
behavioral1
Sample
Interac-e-Transfer-Receipt.exe
Resource
win7-20220718-en
Behavioral task
behavioral2
Sample
Interac-e-Transfer-Receipt.exe
Resource
win10v2004-20220722-en
General
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Target
Interac-e-Transfer-Receipt.exe
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Size
300.0MB
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MD5
8dac8b61bf8c23264873a3f3bee260f5
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SHA1
ba581c38574794324ea714a48671fad7f2384dbe
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SHA256
7e4a1f93d53d3962a913e000524344bdcccd6d36d0856b3df38df57d4a8e1df3
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SHA512
65ef0b281583e1f8303ff470dc134d8d35ccc394521fd93294cd251220af501137b17d39af91829efe0191e395c2494e1652565895647bf04a46b56fe0eae163
Malware Config
Extracted
bitrat
1.38
bitrat9300.duckdns.org:9300
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communication_password
e10adc3949ba59abbe56e057f20f883e
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tor_process
tor
Signatures
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Executes dropped EXE 1 IoCs
Processes:
olkij.exepid process 1644 olkij.exe -
Processes:
resource yara_rule behavioral1/memory/1200-59-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral1/memory/1200-61-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral1/memory/1200-62-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral1/memory/1200-64-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral1/memory/1200-65-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral1/memory/1200-68-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral1/memory/1200-69-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral1/memory/1200-70-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral1/memory/1200-73-0x0000000000400000-0x00000000007E4000-memory.dmp upx -
Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
Processes:
RegAsm.exepid process 1200 RegAsm.exe 1200 RegAsm.exe 1200 RegAsm.exe 1200 RegAsm.exe 1200 RegAsm.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Interac-e-Transfer-Receipt.exedescription pid process target process PID 1124 set thread context of 1200 1124 Interac-e-Transfer-Receipt.exe RegAsm.exe -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
RegAsm.exedescription pid process Token: SeDebugPrivilege 1200 RegAsm.exe Token: SeShutdownPrivilege 1200 RegAsm.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
RegAsm.exepid process 1200 RegAsm.exe 1200 RegAsm.exe -
Suspicious use of WriteProcessMemory 27 IoCs
Processes:
Interac-e-Transfer-Receipt.execmd.exetaskeng.exedescription pid process target process PID 1124 wrote to memory of 2000 1124 Interac-e-Transfer-Receipt.exe cmd.exe PID 1124 wrote to memory of 2000 1124 Interac-e-Transfer-Receipt.exe cmd.exe PID 1124 wrote to memory of 2000 1124 Interac-e-Transfer-Receipt.exe cmd.exe PID 1124 wrote to memory of 2000 1124 Interac-e-Transfer-Receipt.exe cmd.exe PID 1124 wrote to memory of 1488 1124 Interac-e-Transfer-Receipt.exe cmd.exe PID 1124 wrote to memory of 1488 1124 Interac-e-Transfer-Receipt.exe cmd.exe PID 1124 wrote to memory of 1488 1124 Interac-e-Transfer-Receipt.exe cmd.exe PID 1124 wrote to memory of 1488 1124 Interac-e-Transfer-Receipt.exe cmd.exe PID 2000 wrote to memory of 1964 2000 cmd.exe schtasks.exe PID 2000 wrote to memory of 1964 2000 cmd.exe schtasks.exe PID 2000 wrote to memory of 1964 2000 cmd.exe schtasks.exe PID 2000 wrote to memory of 1964 2000 cmd.exe schtasks.exe PID 1124 wrote to memory of 1200 1124 Interac-e-Transfer-Receipt.exe RegAsm.exe PID 1124 wrote to memory of 1200 1124 Interac-e-Transfer-Receipt.exe RegAsm.exe PID 1124 wrote to memory of 1200 1124 Interac-e-Transfer-Receipt.exe RegAsm.exe PID 1124 wrote to memory of 1200 1124 Interac-e-Transfer-Receipt.exe RegAsm.exe PID 1124 wrote to memory of 1200 1124 Interac-e-Transfer-Receipt.exe RegAsm.exe PID 1124 wrote to memory of 1200 1124 Interac-e-Transfer-Receipt.exe RegAsm.exe PID 1124 wrote to memory of 1200 1124 Interac-e-Transfer-Receipt.exe RegAsm.exe PID 1124 wrote to memory of 1200 1124 Interac-e-Transfer-Receipt.exe RegAsm.exe PID 1124 wrote to memory of 1200 1124 Interac-e-Transfer-Receipt.exe RegAsm.exe PID 1124 wrote to memory of 1200 1124 Interac-e-Transfer-Receipt.exe RegAsm.exe PID 1124 wrote to memory of 1200 1124 Interac-e-Transfer-Receipt.exe RegAsm.exe PID 652 wrote to memory of 1644 652 taskeng.exe olkij.exe PID 652 wrote to memory of 1644 652 taskeng.exe olkij.exe PID 652 wrote to memory of 1644 652 taskeng.exe olkij.exe PID 652 wrote to memory of 1644 652 taskeng.exe olkij.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Interac-e-Transfer-Receipt.exe"C:\Users\Admin\AppData\Local\Temp\Interac-e-Transfer-Receipt.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1124 -
C:\Windows\SysWOW64\cmd.exe"cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Local\Temp\olkij.exe'" /f2⤵
- Suspicious use of WriteProcessMemory
PID:2000 -
C:\Windows\SysWOW64\schtasks.exeschtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Local\Temp\olkij.exe'" /f3⤵
- Creates scheduled task(s)
PID:1964
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C:\Windows\SysWOW64\cmd.exe"cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\Interac-e-Transfer-Receipt.exe" "C:\Users\Admin\AppData\Local\Temp\olkij.exe"2⤵PID:1488
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1200
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C:\Windows\system32\taskeng.exetaskeng.exe {139C17B6-F165-46C1-B328-C8DA43D30DA3} S-1-5-21-4084403625-2215941253-1760665084-1000:LDLTPJLN\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:652 -
C:\Users\Admin\AppData\Local\Temp\olkij.exeC:\Users\Admin\AppData\Local\Temp\olkij.exe2⤵
- Executes dropped EXE
PID:1644
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
300.0MB
MD58dac8b61bf8c23264873a3f3bee260f5
SHA1ba581c38574794324ea714a48671fad7f2384dbe
SHA2567e4a1f93d53d3962a913e000524344bdcccd6d36d0856b3df38df57d4a8e1df3
SHA51265ef0b281583e1f8303ff470dc134d8d35ccc394521fd93294cd251220af501137b17d39af91829efe0191e395c2494e1652565895647bf04a46b56fe0eae163
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Filesize
300.0MB
MD58dac8b61bf8c23264873a3f3bee260f5
SHA1ba581c38574794324ea714a48671fad7f2384dbe
SHA2567e4a1f93d53d3962a913e000524344bdcccd6d36d0856b3df38df57d4a8e1df3
SHA51265ef0b281583e1f8303ff470dc134d8d35ccc394521fd93294cd251220af501137b17d39af91829efe0191e395c2494e1652565895647bf04a46b56fe0eae163