'��Lx���6u���2�m1@�<qqb@V� 3�C\���ȉ�� O��9���-1~X�G��6-̇|��i�'j��K~���4��R���U] �t�ȗ��E��k7�yL�QLF\q ��N˗m�kp]`�i� �]���R#-�3��0�1D�,�(ؔ<Ai�jV�v F�ǽ���$�;N~^�Ё�֒$��x���N;GM�:K��x�-'���#_�m�R#=B�T�/-G�2y�����R�ك;Q~0�S�ͽ#`��&z���c��K=)O�r�Ժ�Ը�0V}En��e6V���q�����w\2��h��8<����t�*����8�t̸YL�D�����u���n��T n����x-�겿1 ���^{0"�9uY ����K�Z#*�hC�Y��˪q���B8� �� 喡�~�:@3�j{��gv6�V�T`��Z�P\ ���s���8� �9�!�q "թw���]�L�����s3���}t��i�Cq�����TI����F%Z]�/�k�r���7f����n�����E�@c�^�;�Y���9F]� !�`� �3/����v�$�4�u����ˇ�V;>X��bc��w�%Zs��N�DpFX='`z�Ы+��yp� �`�����f��� ����r5J�W2O+C���w���T������?҄�wb�{�=���ƕ ����L�#�0dl�h�:��M�[���t���UA��zƲ/��Ș֦i�1v��d`�7k0C�iZ�>���A�y6d���Ñ�������W:�s���1�=U@�� z&ԁ�N�͓��A�T�ޛS���d�%n��@�"���2������5N<�V/���Z7����5R=mf�F�~�Y���1�*j~Ij\^d���+�O㻡 ���Y�8J��ޥ�&dr�6+7��8K���9�AAY����^� tŸ.����`/ K@<�t�p��LѺsl�a��]f�K�Q���V���(;YX<��:��L����hĂޓ.������HA���m��$BI�۷3S&!X �����ޑ8z�����4�[J���'����O��}ڏ3;*%�`ػH�x���6���3�b#����Ƕ7OPhp7e\[��rdt�S��L�uÃ��t��M�P z�j�r�����7cN�B�RZ��R����*췊^�]��D@�W�*ÏJ�W����WA���K��O�ي�Ia͇��Ɣq����w�G����j)q���Juy3[eA�T*�b_8 �K�GB!�5��du��(�{}�������n��,��u'�v�j���:`_%���w��4'Q�H�q�h�ca+ �1�v�#/�D����� eo��;'�qs��⮹� !���ѥ�O��Jݖb�7�3��e�� Pe�NC����ܪ�w)<��{H������6/�հ�2�j��Y���y �x��4���fY�1��r�|�mn ;�"/�}Ԕ���d�%��� ����n�3ǃ �ĶR�J� ��B3ǫ���˄�`Lf7��? !�H� H^e'��z�lA,(��4��ܧ;��I�by5����<-ѡ%��b��h��H��j��`� ��\^�j����yM����� �ӳ5��rQT�E�3u��Ѻ�i��|U��T[O�%+ʍ� <%���g�`}hU���wѱ�K憞<붚k�"ky*�'�^E"M�5n(6����P����`p:y�<�6�ߢCj���4CX�s)�:���J���y�I�e�ߝ��p��&���`H�����F�'���u � {��6�TF����[�!�IJ��� Z�~D��b�.r@�$l��\��xg�<�Ԝ�S!*���~ԛū�x[a_s�?j4��<��6���:�,����m�x���������3�\`'N�?DD6����F��>�����Z�s��g4���ɚ�r����>c�tX�+���.��� ���xL*��&�Rߪ�a�B�Ҍ�}|&Gwƽ$���π���� �s|�����_L0t*�B�ܤ)}y�G0K��O�#�k��*:�Yj� ����*��Ѿ2lE)܄���#r.�..����{�6y+���|]v���&+��#���<���`y�2Zw&���X�j����c�^3dE���D �q�����r4�Z��q\�0�%�R��o/�Yjn6�[�K��C����W/��N�^��������)�(n$�U��� q��Da'���R�$���Ǭ9+i|@b��\bg�j�P0b �R�k�X�P�;�o7�};پ���Jzɠ�%���q�ʪ��K���cY�?`cł�a����&|��m��_����X�2~c�����O�m±�7���Pg У�,}����L�$�,jJ)d���� /����#���C��(� �䧼�y���(%��\J��m����=��S@ T�$՛��-�:���Egc^���@�C�r��/hA0f�G&"�cvM,!>�g��S�Z����"r��oC��S�� @U�\�e��:n1��G���l��M�At��E�?�D�8�/�&c���}ܙ槌�8��#6��0SU4�qց�D�x��fGe>e>K������nK�Ȇ��l5D������p���BI;R����Ǥ�?e�>���3��`%X�x��q +Ih�Jh�m��V���!"*r��� �뺯�?��J�k/�x�ny+~0"B-��3�鑁��C9�`��uD?6~6k��<�[�}^m�i��G<G��hl4m������fI��(�;W�^��~�YI�����Vw˷ ���?%��9�]ɹ�-sx�O89�C8��N �{Սr��b:^a�#�A@.���v;���_O�@�~���۳G!��(��L�q?�tV�*��x�ڕ鮃\wO"��5{��gؖԊ�̅j�Д�s�R� ��Xu8C�N�����7tǔ*�F������<���ayP�7�`T(~�xE��2�/��r�ag.��n=V/��vz`�R��hsC���+��؆�����+��Zm��7��+���#��W9��]��Ҁ�0�m��_
Behavioral task
behavioral1
Sample
PDF Exploit/PDF Exploit Builder.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
PDF Exploit/PDF Exploit Builder.exe
Resource
win10v2004-20231222-en
Behavioral task
behavioral3
Sample
PDF Exploit/Viper Crypter.exe
Resource
win7-20231215-en
Behavioral task
behavioral4
Sample
PDF Exploit/Viper Crypter.exe
Resource
win10v2004-20231215-en
General
-
Target
pdf exploit and crypter.zip
-
Size
2.5MB
-
MD5
42e66d5cb4154aa1cb696dbb88ace5e9
-
SHA1
f2cd8af34d8d47a6be212727f1dfd37b929ed3fa
-
SHA256
a986df840dbd2bd714dee48bb4fb99df6a62a3e4649e0fbdddf021ca1da95eb3
-
SHA512
7384c521d102629ec1048299a56d90eca4b80d4de35592ea4398ec4f3ae08f4082d12e6e101305075615c66632db1e2c6c03626c5a6491e6c3c5a46f91999fc6
-
SSDEEP
49152:2vR3KQpLCDSCNJsNX1FokxcRrpcc2ni93iGl8F81DGHqYeCLqx:2R6QESCjsNXvEpcc2n9/F81+XeCLI
Malware Config
Signatures
-
resource yara_rule static1/unpack002/PDF Exploit/Viper Crypter.exe upx -
Unsigned PE 3 IoCs
Checks for missing Authenticode signature.
resource unpack002/PDF Exploit/PDF Exploit Builder.exe unpack002/PDF Exploit/Viper Crypter.exe unpack003/out.upx
Files
-
pdf exploit and crypter.zip.zip
-
PDF Exploit with crypter.rar.rar
-
PDF Exploit/PDF Exploit Builder.exe.exe windows:5 windows x86 arch:x86
b7e6196c2ddab19a40e36aa3126667d5
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE
Imports
wsock32
setsockopt
version
GetFileVersionInfoW
winmm
mciSendStringW
comctl32
InitCommonControlsEx
mpr
WNetGetConnectionW
wininet
FtpGetFileSize
psapi
GetProcessMemoryInfo
iphlpapi
IcmpCloseHandle
userenv
UnloadUserProfile
uxtheme
IsThemeActive
kernel32
GetVersionExW
ExitProcess
GetModuleFileNameW
GetModuleHandleA
LoadLibraryA
LocalAlloc
LocalFree
GetModuleFileNameA
ExitProcess
user32
MonitorFromRect
gdi32
PolyDraw
comdlg32
GetSaveFileNameW
advapi32
LookupPrivilegeValueW
shell32
SHGetPathFromIDListW
ole32
CoGetObject
oleaut32
SafeArrayAccessData
Exports
Exports
Sections
.text Size: - Virtual size: 567KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: - Virtual size: 184KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: - Virtual size: 35KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.obf0 Size: - Virtual size: 1.6MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.tls Size: 512B - Virtual size: 24B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.obf1 Size: 2.1MB - Virtual size: 2.1MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.reloc Size: 512B - Virtual size: 324B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 26KB - Virtual size: 26KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
-
PDF Exploit/Tutorial.txt
-
PDF Exploit/Viper Crypter.exe.exe windows:4 windows x86 arch:x86
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_BYTES_REVERSED_LO
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_BYTES_REVERSED_HI
Sections
UPX0 Size: - Virtual size: 704KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 319KB - Virtual size: 320KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 167KB - Virtual size: 168KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
-
out.upx.exe windows:4 windows x86 arch:x86
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_BYTES_REVERSED_LO
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_BYTES_REVERSED_HI
Sections
.text Size: 666KB - Virtual size: 665KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.itext Size: 3KB - Virtual size: 2KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 23KB - Virtual size: 23KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.bss Size: - Virtual size: 24KB
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 13KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.tls Size: - Virtual size: 64B
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rdata Size: 512B - Virtual size: 42B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 43KB - Virtual size: 43KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
.rsrc Size: 214KB - Virtual size: 214KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
-
readbefore use.txt