Static task
static1
Behavioral task
behavioral1
Sample
rvlrarhsma.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
rvlrarhsma.exe
Resource
win10-en-20211208
General
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Target
d3190b5007d433e875039da72ef507a1c6e7c15cdcf7ce4409e333d89c9050ee
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Size
64KB
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MD5
00b5cada54b51565715377901c5d47c8
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SHA1
414ad05a1573b5676e52c5e6f8948bbba9a0f8c8
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SHA256
d3190b5007d433e875039da72ef507a1c6e7c15cdcf7ce4409e333d89c9050ee
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SHA512
242538a77d298ffd0079496ac36dff8849247790f17b8f9155dacca650c9e30ffea628fb3899423dcab1abc976b3dcf6dab1efde79c8c4fe4f6b1cc561cdabd5
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SSDEEP
768:9VRIePL4Rc8PX3gGFs9c09b407KGGIJOY9aIiiS:9rDGcurFsah0OxIwciiS
Malware Config
Signatures
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CrimsonRAT Main Payload 1 IoCs
Processes:
resource yara_rule static1/unpack001/rvlrarhsma.exe family_crimsonrat -
Crimsonrat family
Files
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d3190b5007d433e875039da72ef507a1c6e7c15cdcf7ce4409e333d89c9050ee.zip
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rvlrarhsma.exe.exe windows x86
f34d5f2d4577ed6d9ceec516c1f5a744
Code Sign
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: 9.6MB - Virtual size: 9.6MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 104KB - Virtual size: 104KB
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