Analysis
- max time kernel
118s - max time network
117s - platform
windows7_x64 - resource
win7-en-20210920 - submitted
10/10/2021, 02:48
Static task
static1
Behavioral task
behavioral1
Sample
de4419c0142a84761ed9abddcbc8bd76.exe
Resource
win7-en-20210920
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
de4419c0142a84761ed9abddcbc8bd76.exe
Resource
win10v20210408
0 signatures
0 seconds
General
- Target de4419c0142a84761ed9abddcbc8bd76.exe
- Size 351KB
- Sample211010-dafnvafee4
- SHA256 4e7a2d297395633bb98f5a8e2c51ed41bad9e7b8917eca00aa9b83517d16eb91
- MD5 de4419c0142a84761ed9abddcbc8bd76
- SHA1 8d8d8261358f19dd12e6988a5a543ba0b62e204f
- SHA512 208c24675fbaba7ed7bab44d5a97fa6e0add4e46b2f3d2cdf0a63f8d9c1b336b0b1ce02a7f40253e49129bee3814dbacb105073e02a294e8dbcbd4996900a22e
- MD5 SHA1 SHA512
Score
8/10
Malware Config
Signatures
- Downloads MZ/PE file
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resource yara_rule behavioral1/files/0x0005000000013201-64.dat vmprotect - Deletes itself 1 IoCs
pid Process 1272 cmd.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Delays execution with timeout.exe 1 IoCs
pid Process 1604 timeout.exe - Kills process with taskkill 1 IoCs
pid Process 1144 taskkill.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1620 de4419c0142a84761ed9abddcbc8bd76.exe Token: SeDebugPrivilege 1144 taskkill.exe - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 1620 wrote to memory of 1272 1620 de4419c0142a84761ed9abddcbc8bd76.exe 28 PID 1620 wrote to memory of 1272 1620 de4419c0142a84761ed9abddcbc8bd76.exe 28 PID 1620 wrote to memory of 1272 1620 de4419c0142a84761ed9abddcbc8bd76.exe 28 PID 1272 wrote to memory of 1692 1272 cmd.exe 30 PID 1272 wrote to memory of 1692 1272 cmd.exe 30 PID 1272 wrote to memory of 1692 1272 cmd.exe 30 PID 1272 wrote to memory of 1144 1272 cmd.exe 31 PID 1272 wrote to memory of 1144 1272 cmd.exe 31 PID 1272 wrote to memory of 1144 1272 cmd.exe 31 PID 1272 wrote to memory of 1604 1272 cmd.exe 32 PID 1272 wrote to memory of 1604 1272 cmd.exe 32 PID 1272 wrote to memory of 1604 1272 cmd.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\de4419c0142a84761ed9abddcbc8bd76.exe"C:\Users\Admin\AppData\Local\Temp\de4419c0142a84761ed9abddcbc8bd76.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1620 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp3794.tmp.bat2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:1272 -
C:\Windows\system32\chcp.comchcp 650013⤵PID:1692
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C:\Windows\system32\taskkill.exeTaskKill /F /IM 16203⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1144
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C:\Windows\system32\timeout.exeTimeout /T 2 /Nobreak3⤵
- Delays execution with timeout.exe
PID:1604
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