Behavioral task
behavioral1
Sample
Pearjumper.exe
Resource
win7-20240903-en
General
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Target
Pearjumper.exe
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Size
3.1MB
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MD5
5dd91af5b6d1e8f38ccf83f6cf24e93d
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SHA1
978d27dfe11619fbd71333d63741da0b3a21b7d2
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SHA256
e2ba71624ae6ac3f80fbb474079bda5827244925eff77919760367d1622607ff
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SHA512
6b6e61f8419e234eeb233eeb0f402434f5905492831588a3a488caf02ca9a60bc21a4b94acf7982d3dc533afe801341220a51d1fb33bc14dcc1cca1c44f8c03b
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SSDEEP
49152:OvyI22SsaNYfdPBldt698dBcjHagRS/koGwgRYTHHB72eh2NT:Ovf22SsaNYfdPBldt6+dBcjHagRS8d
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.4.26:4782
8ee4e652-9e5a-432b-95de-d75a01767545
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encryption_key
4F71DD3E5776310D88190A9E0349AF91D019E4F6
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Quasar Client Startup
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subdirectory
SubDir
Signatures
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Quasar family
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Quasar payload 1 IoCs
Processes:
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource Pearjumper.exe
Files
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Pearjumper.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 3.1MB - Virtual size: 3.1MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 3KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ