Analysis
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max time kernel
152s -
max time network
142s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
11-09-2021 16:46
Static task
static1
Behavioral task
behavioral1
Sample
Invoice #09747583900.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
Invoice #09747583900.exe
Resource
win10-en
General
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Target
Invoice #09747583900.exe
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Size
635KB
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MD5
027ed8a97dd1dd28cc73c9edf4ec89ab
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SHA1
131efcf3ee4e6f0629027066ab002355c2f20a00
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SHA256
81f7a0f726f4001c9e4e7d67ba9ab6c3f45139887dabe78f6e3d04dd2b0557e2
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SHA512
0c6b3606b56fe7662895783a1512ca62290697049230433ca645e953218bce1311e5dd970dbb30b0a575ef1e0398e5874d602c9f6313f64e2b245a02ff55d497
Malware Config
Extracted
njrat
v4.0
AhKey_000_Sat
cdanger492.duckdns.org:4480
Windows
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reg_key
Windows
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splitter
|-F-|
Signatures
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Drops startup file 1 IoCs
Processes:
Invoice #09747583900.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk Invoice #09747583900.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Invoice #09747583900.exedescription pid process target process PID 1080 set thread context of 1592 1080 Invoice #09747583900.exe Invoice #09747583900.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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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 23 IoCs
Processes:
Invoice #09747583900.exedescription pid process Token: SeDebugPrivilege 1592 Invoice #09747583900.exe Token: 33 1592 Invoice #09747583900.exe Token: SeIncBasePriorityPrivilege 1592 Invoice #09747583900.exe Token: 33 1592 Invoice #09747583900.exe Token: SeIncBasePriorityPrivilege 1592 Invoice #09747583900.exe Token: 33 1592 Invoice #09747583900.exe Token: SeIncBasePriorityPrivilege 1592 Invoice #09747583900.exe Token: 33 1592 Invoice #09747583900.exe Token: SeIncBasePriorityPrivilege 1592 Invoice #09747583900.exe Token: 33 1592 Invoice #09747583900.exe Token: SeIncBasePriorityPrivilege 1592 Invoice #09747583900.exe Token: 33 1592 Invoice #09747583900.exe Token: SeIncBasePriorityPrivilege 1592 Invoice #09747583900.exe Token: 33 1592 Invoice #09747583900.exe Token: SeIncBasePriorityPrivilege 1592 Invoice #09747583900.exe Token: 33 1592 Invoice #09747583900.exe Token: SeIncBasePriorityPrivilege 1592 Invoice #09747583900.exe Token: 33 1592 Invoice #09747583900.exe Token: SeIncBasePriorityPrivilege 1592 Invoice #09747583900.exe Token: 33 1592 Invoice #09747583900.exe Token: SeIncBasePriorityPrivilege 1592 Invoice #09747583900.exe Token: 33 1592 Invoice #09747583900.exe Token: SeIncBasePriorityPrivilege 1592 Invoice #09747583900.exe -
Suspicious use of WriteProcessMemory 13 IoCs
Processes:
Invoice #09747583900.exedescription pid process target process PID 1080 wrote to memory of 1208 1080 Invoice #09747583900.exe schtasks.exe PID 1080 wrote to memory of 1208 1080 Invoice #09747583900.exe schtasks.exe PID 1080 wrote to memory of 1208 1080 Invoice #09747583900.exe schtasks.exe PID 1080 wrote to memory of 1208 1080 Invoice #09747583900.exe schtasks.exe PID 1080 wrote to memory of 1592 1080 Invoice #09747583900.exe Invoice #09747583900.exe PID 1080 wrote to memory of 1592 1080 Invoice #09747583900.exe Invoice #09747583900.exe PID 1080 wrote to memory of 1592 1080 Invoice #09747583900.exe Invoice #09747583900.exe PID 1080 wrote to memory of 1592 1080 Invoice #09747583900.exe Invoice #09747583900.exe PID 1080 wrote to memory of 1592 1080 Invoice #09747583900.exe Invoice #09747583900.exe PID 1080 wrote to memory of 1592 1080 Invoice #09747583900.exe Invoice #09747583900.exe PID 1080 wrote to memory of 1592 1080 Invoice #09747583900.exe Invoice #09747583900.exe PID 1080 wrote to memory of 1592 1080 Invoice #09747583900.exe Invoice #09747583900.exe PID 1080 wrote to memory of 1592 1080 Invoice #09747583900.exe Invoice #09747583900.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Invoice #09747583900.exe"C:\Users\Admin\AppData\Local\Temp\Invoice #09747583900.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1080 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\Evmpca" /XML "C:\Users\Admin\AppData\Local\Temp\tmp45C7.tmp"2⤵
- Creates scheduled task(s)
PID:1208
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C:\Users\Admin\AppData\Local\Temp\Invoice #09747583900.exe"{path}"2⤵
- Drops startup file
- Suspicious use of AdjustPrivilegeToken
PID:1592
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
87931a632a997dc10b4539090ebaf71e
SHA13767b8d7e2d7b2a03dc0ad2699583d49bcf5112e
SHA2569d77e08cec51dfd1d4d5f5c9278c07ffeab3d32a6c731c5374d19bd9d18a1b59
SHA5122bc54cfd18c3bdc895b1e19127a9d3f8aae6796cd82c51f3b2b061c6f64e5176e2a8e9c84af7b2a944fd55b2113e98ea80479cacd7fba319dc7bbe5ceb6d58bc