Analysis
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max time kernel
148s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
10-03-2024 00:50
Static task
static1
Behavioral task
behavioral1
Sample
c13b51380f7c3694251bd074cdeb7507bd4f50e7984943267d7ff73df253e6c3.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
c13b51380f7c3694251bd074cdeb7507bd4f50e7984943267d7ff73df253e6c3.exe
Resource
win10v2004-20240226-en
General
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Target
c13b51380f7c3694251bd074cdeb7507bd4f50e7984943267d7ff73df253e6c3.exe
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Size
396KB
-
MD5
1e5bdfbe1de909062aae0fc38b995818
-
SHA1
d4bc6dbbf2c9dcce0b7a48c62695790f9416fc06
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SHA256
c13b51380f7c3694251bd074cdeb7507bd4f50e7984943267d7ff73df253e6c3
-
SHA512
558ec3f6361d423d69405e1c051db6e0e2fdac6b6eb57d095bd01b8e1fa51a604502eb75012351856023cb371261f32460de040306c7e4e5da48e284eaff89f3
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SSDEEP
6144:4jlYKRF/LReWAsUyxUr0BaqhLQDX6et9MvW/ohOT:4jauDReWE0QqpQDX6euW/TT
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 1828 obwbjj.exe -
Loads dropped DLL 2 IoCs
pid Process 2028 c13b51380f7c3694251bd074cdeb7507bd4f50e7984943267d7ff73df253e6c3.exe 2028 c13b51380f7c3694251bd074cdeb7507bd4f50e7984943267d7ff73df253e6c3.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\Microsoft® Windows® Operating System = "C:\\ProgramData\\obwbjj.exe" obwbjj.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2028 wrote to memory of 1828 2028 c13b51380f7c3694251bd074cdeb7507bd4f50e7984943267d7ff73df253e6c3.exe 28 PID 2028 wrote to memory of 1828 2028 c13b51380f7c3694251bd074cdeb7507bd4f50e7984943267d7ff73df253e6c3.exe 28 PID 2028 wrote to memory of 1828 2028 c13b51380f7c3694251bd074cdeb7507bd4f50e7984943267d7ff73df253e6c3.exe 28 PID 2028 wrote to memory of 1828 2028 c13b51380f7c3694251bd074cdeb7507bd4f50e7984943267d7ff73df253e6c3.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\c13b51380f7c3694251bd074cdeb7507bd4f50e7984943267d7ff73df253e6c3.exe"C:\Users\Admin\AppData\Local\Temp\c13b51380f7c3694251bd074cdeb7507bd4f50e7984943267d7ff73df253e6c3.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2028 -
C:\ProgramData\obwbjj.exe"C:\ProgramData\obwbjj.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
PID:1828
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
396KB
MD555f10f9e90f2c635cb26bacc66ce6871
SHA16226e9fb84d7814604492ac953d5209237fa57a8
SHA256d8e34420f88c8ebaadbe82c05812f01fd4fd9ce5ba6203506b94d02b174b37be
SHA5128b5ef4e9cb2823f0ac570bb948b0c21ec8255b1a6fd7f7be5667511a3fec7e10a1f4010a23395d2ac2405a740922bc3c1d50aa7d0482c67692a987cb190af0e2
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Filesize
136KB
MD5cb4c442a26bb46671c638c794bf535af
SHA18a742d0b372f2ddd2d1fdf688c3c4ac7f9272abf
SHA256f8d2c17bdf34ccfb58070ac8b131a8d95055340101a329f9a7212ac5240d0c25
SHA512074a31e8da403c0a718f93cbca50574d8b658921193db0e6e20eacd232379286f14a3698cd443dc740d324ad19d74934ae001a7ad64b88897d8afefbc9a3d4e3
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Filesize
259KB
MD5a17489efff3b3ec42fe47119ea2a8c89
SHA10a9f931fdbb886fa70a6cc81c009f0727a563d12
SHA256e8028f10c8876ecd84fe92916876f117f9af722f2b25ab0b8f19222e4e419d43
SHA512ce41b2a5df92408fc2b3ff48324d6165f5b0cd2d85072564483cd6d64c35d4290ef41ee546259252e205d0bb4f0c617e777fb1f2f16a6c122e8d0cb43be19978