Analysis
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max time kernel
148s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
04-02-2024 20:07
Static task
static1
Behavioral task
behavioral1
Sample
90091c8c9c69b12fe47cee45e5090bf9.exe
Resource
win7-20231129-en
General
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Target
90091c8c9c69b12fe47cee45e5090bf9.exe
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Size
1.1MB
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MD5
90091c8c9c69b12fe47cee45e5090bf9
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SHA1
e7faaf6695ac2c30dbda38e576e6f50eaa04127a
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SHA256
7d900c842228164a450c070b49db71709f73aab97f548167e79742f505e2edc7
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SHA512
d772aeb2fc7aac1c30f0e5b4fd782b523d56c3875e40c612d24fa19e0023cee960f149b633fc98c2c2785e13d806a1fb4d32b7f29a605034acbfec54c2ebdabb
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SSDEEP
24576:e4S/d3uKzksuksSmmRBhZfyrBvEiomcy8jh8N6ZNXZ:dKLmCZMBvEirc+N6ZNX
Malware Config
Extracted
limerat
bc1q5746qkzdr628cmq4swa02lpu2mk69t0pdxdgzs
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aes_key
Wealth1000$
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antivm
false
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c2_url
https://pastebin.com/raw/LF04hVta
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delay
3
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download_payload
false
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install
false
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install_name
Wservices.exe
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main_folder
Temp
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pin_spread
false
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sub_folder
\
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usb_spread
true
Extracted
limerat
-
antivm
false
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c2_url
https://pastebin.com/raw/LF04hVta
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download_payload
false
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install
false
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pin_spread
false
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usb_spread
false
Signatures
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CustAttr .NET packer 1 IoCs
Detects CustAttr .NET packer in memory.
Processes:
resource yara_rule behavioral1/memory/944-3-0x0000000000310000-0x0000000000322000-memory.dmp CustAttr -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
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Suspicious use of SetThreadContext 1 IoCs
Processes:
90091c8c9c69b12fe47cee45e5090bf9.exedescription pid process target process PID 944 set thread context of 2652 944 90091c8c9c69b12fe47cee45e5090bf9.exe RegSvcs.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 2 IoCs
Processes:
RegSvcs.exedescription pid process Token: SeDebugPrivilege 2652 RegSvcs.exe Token: SeDebugPrivilege 2652 RegSvcs.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
90091c8c9c69b12fe47cee45e5090bf9.exedescription pid process target process PID 944 wrote to memory of 2624 944 90091c8c9c69b12fe47cee45e5090bf9.exe schtasks.exe PID 944 wrote to memory of 2624 944 90091c8c9c69b12fe47cee45e5090bf9.exe schtasks.exe PID 944 wrote to memory of 2624 944 90091c8c9c69b12fe47cee45e5090bf9.exe schtasks.exe PID 944 wrote to memory of 2624 944 90091c8c9c69b12fe47cee45e5090bf9.exe schtasks.exe PID 944 wrote to memory of 2652 944 90091c8c9c69b12fe47cee45e5090bf9.exe RegSvcs.exe PID 944 wrote to memory of 2652 944 90091c8c9c69b12fe47cee45e5090bf9.exe RegSvcs.exe PID 944 wrote to memory of 2652 944 90091c8c9c69b12fe47cee45e5090bf9.exe RegSvcs.exe PID 944 wrote to memory of 2652 944 90091c8c9c69b12fe47cee45e5090bf9.exe RegSvcs.exe PID 944 wrote to memory of 2652 944 90091c8c9c69b12fe47cee45e5090bf9.exe RegSvcs.exe PID 944 wrote to memory of 2652 944 90091c8c9c69b12fe47cee45e5090bf9.exe RegSvcs.exe PID 944 wrote to memory of 2652 944 90091c8c9c69b12fe47cee45e5090bf9.exe RegSvcs.exe PID 944 wrote to memory of 2652 944 90091c8c9c69b12fe47cee45e5090bf9.exe RegSvcs.exe PID 944 wrote to memory of 2652 944 90091c8c9c69b12fe47cee45e5090bf9.exe RegSvcs.exe PID 944 wrote to memory of 2652 944 90091c8c9c69b12fe47cee45e5090bf9.exe RegSvcs.exe PID 944 wrote to memory of 2652 944 90091c8c9c69b12fe47cee45e5090bf9.exe RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\90091c8c9c69b12fe47cee45e5090bf9.exe"C:\Users\Admin\AppData\Local\Temp\90091c8c9c69b12fe47cee45e5090bf9.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:944 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pqfTsGmCOXK" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA8AE.tmp"2⤵
- Creates scheduled task(s)
PID:2624
-
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2652
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
65KB
MD5ac05d27423a85adc1622c714f2cb6184
SHA1b0fe2b1abddb97837ea0195be70ab2ff14d43198
SHA256c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
SHA5126d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d
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Filesize
171KB
MD59c0c641c06238516f27941aa1166d427
SHA164cd549fb8cf014fcd9312aa7a5b023847b6c977
SHA2564276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f
SHA512936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06
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Filesize
1KB
MD59340b01f01b2c3dde20f1a013d2bb036
SHA1c41f3bdb7ea6247a684e48e7cf4560f357dc9e01
SHA2564e24b18cb48c395da2380e6e2dabbb1babd33d5604d87d6e667f77fdd2845024
SHA512ca367c13f46dfef09286fd428ccba08f94ed16756c7705039f1f4abbabc68eade236b595bf114e6173fae4a80d3058b0d6fc60fde3283c09cf356b760c12748a