Behavioral task
behavioral1
Sample
AdobePDFReader.exe
Resource
win7-20240903-en
General
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Target
AdobePDFReader.exe
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Size
3.4MB
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MD5
9d6f812bb326e1ff2bddd78747fbee25
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SHA1
e2c511d7634e02166a3ca7645b631e124767e216
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SHA256
4146288cd858e72cc246c03bae1cf61494a575366c4e0e86f7c824455b938388
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SHA512
12783e33c8d3a0bb0d284e300158155aa52c9a44635565a8bc53dbfcd0ff976d32983cae732e07ed207ad5bb0283ba23a88f2d426781fcbd16e8dd1b72508191
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SSDEEP
49152:wvmlW2p9agXI2PrlTnr4BZmFze02sk9hEvJQLoGdhTHHB72eh2NT:wveW2p9agXI2PrlTnrmZmFzePhD
Malware Config
Extracted
quasar
1.4.1
opbrghost-23030.portmap.host:27876
ghostopbr2-31034.portmap.host:1234
trackopbr2.ddns.net:1234
ghostopbr2-31034.portmap.host:31034
1bfd6271-eb49-4e9c-8bcb-3434a8d1ce46
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encryption_key
15ABC767973F155DA890D96E8ED7EB1946705743
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install_name
AdobePDFReader.exe
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log_directory
Logs
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reconnect_delay
300
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startup_key
Adobe PDF Reader
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subdirectory
SubDir
Signatures
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Quasar family
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Quasar payload 1 IoCs
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource AdobePDFReader.exe
Files
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AdobePDFReader.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: 267KB - Virtual size: 266KB
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