Analysis
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max time kernel
150s -
max time network
136s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
29/08/2022, 22:32
Static task
static1
Behavioral task
behavioral1
Sample
B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe
Resource
win7-20220812-en
General
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Target
B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe
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Size
747KB
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MD5
4f3b19fb5b969de21269ab250ce4f017
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SHA1
0df23eb61ff6dc91a5b5bab3d7a5968c37a67ce4
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SHA256
b10fddacee9920ac4bd5bfdd19e07124e2830b0974c080ee64abaf9626602be1
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SHA512
64afc0a5fa504b903e92183ae3e5e2cfe84a5eb3b61a0b3d568832f47a3c3275e93022907d484f5b78bcaec16a2f56e334bc0a5fef79e977a62ed5c40e2a0b78
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SSDEEP
12288:+/PcsxzMIgn3gnBWEGBypwsLjN7WDkAQfYxdEZB8hca3pKp4cI:YFHnBWEGByp5jN7WDzQgdEZB8hcaiG
Malware Config
Extracted
njrat
0.7NC
NYAN CAT
fur1a.duckdns.org:1995
bc44c55f6c2c4b43
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reg_key
bc44c55f6c2c4b43
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splitter
@!#&^%$
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1502147629-2175634256-330282290-1000\Control Panel\International\Geo\Nation B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4956 set thread context of 1288 4956 B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe 98 -
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.
pid Process 1360 schtasks.exe -
Suspicious use of AdjustPrivilegeToken 17 IoCs
description pid Process Token: SeDebugPrivilege 1288 B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe Token: 33 1288 B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe Token: SeIncBasePriorityPrivilege 1288 B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe Token: 33 1288 B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe Token: SeIncBasePriorityPrivilege 1288 B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe Token: 33 1288 B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe Token: SeIncBasePriorityPrivilege 1288 B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe Token: 33 1288 B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe Token: SeIncBasePriorityPrivilege 1288 B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe Token: 33 1288 B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe Token: SeIncBasePriorityPrivilege 1288 B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe Token: 33 1288 B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe Token: SeIncBasePriorityPrivilege 1288 B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe Token: 33 1288 B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe Token: SeIncBasePriorityPrivilege 1288 B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe Token: 33 1288 B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe Token: SeIncBasePriorityPrivilege 1288 B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 4956 wrote to memory of 1360 4956 B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe 96 PID 4956 wrote to memory of 1360 4956 B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe 96 PID 4956 wrote to memory of 1360 4956 B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe 96 PID 4956 wrote to memory of 1288 4956 B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe 98 PID 4956 wrote to memory of 1288 4956 B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe 98 PID 4956 wrote to memory of 1288 4956 B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe 98 PID 4956 wrote to memory of 1288 4956 B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe 98 PID 4956 wrote to memory of 1288 4956 B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe 98 PID 4956 wrote to memory of 1288 4956 B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe 98 PID 4956 wrote to memory of 1288 4956 B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe 98 PID 4956 wrote to memory of 1288 4956 B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe 98
Processes
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C:\Users\Admin\AppData\Local\Temp\B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe"C:\Users\Admin\AppData\Local\Temp\B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4956 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WABDXeNNV" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEA50.tmp"2⤵
- Creates scheduled task(s)
PID:1360
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C:\Users\Admin\AppData\Local\Temp\B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe"C:\Users\Admin\AppData\Local\Temp\B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe"2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1288
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\B10FDDACEE9920AC4BD5BFDD19E07124E2830B0974C08.exe.log
Filesize1KB
MD584e77a587d94307c0ac1357eb4d3d46f
SHA183cc900f9401f43d181207d64c5adba7a85edc1e
SHA256e16024b092a026a9dc00df69d4b9bbcab7b2dc178dc5291fc308a1abc9304a99
SHA512aefb5c62200b3ed97718d20a89990954d4d8acdc0a6a73c5a420f1bba619cb79e70c2cd0a579b9f52dc6b09e1de2cea6cd6cac4376cfee92d94e2c01d310f691
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Filesize
1KB
MD5c187134c84556e116ba4b771496519c0
SHA1bacba9533d84c26403a0f1634d0b21a9a9b385d4
SHA256cbc00449d3533c143f76ba77e9a6738ab0e979865602af7ea66a7adfa99ade61
SHA512882261af7deb6e4e2eefcab1b2b4ff7e66a1c5b2788b1c643974af4070ca167808610ee7503709658cbe53077dfaa819e3238e414a8e38ca962045a34b4b8176