Behavioral task
behavioral1
Sample
gutou_email_build0411/gutou_email.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
gutou_email_build0411/gutou_email.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
gutou_email_build0411/新云软件.url
Resource
win7-20240708-en
Behavioral task
behavioral4
Sample
gutou_email_build0411/新云软件.url
Resource
win10v2004-20240802-en
General
-
Target
ef11c83e07bf8750d17880fad9d97346_JaffaCakes118
-
Size
364KB
-
MD5
ef11c83e07bf8750d17880fad9d97346
-
SHA1
59e2b84c020caf50eea7ed9a370b34e548162983
-
SHA256
c5d01d968dd0fa2e43311b400265210402b3e5b97b45bedba8882ad45dc83a3c
-
SHA512
6a275b3907cf4ccb56b45974184da484688b69e419d0928701c251fb48f81e347c754e627273913c8886269a1fa54634f095f88e270a761d74a06b03e9ece5a6
-
SSDEEP
6144:+7ac7OLf8kJFigpdkhB0Mnuo3bouQAkKB0QfejrWh9BWSal83QlnbLyYP4+NtTXa:+7EdJFbnC+WTbobApmc9BWtlfl6mNtTK
Malware Config
Signatures
-
resource yara_rule static1/unpack001/gutou_email_build0411/gutou_email.exe upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack001/gutou_email_build0411/gutou_email.exe unpack002/out.upx
Files
-
ef11c83e07bf8750d17880fad9d97346_JaffaCakes118.rar
-
gutou_email_build0411/gutou_email.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_32BIT_MACHINE
Sections
UPX0 Size: - Virtual size: 896KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 362KB - Virtual size: 364KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 9KB - Virtual size: 12KB
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_32BIT_MACHINE
Sections
.text Size: 700KB - Virtual size: 696KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 272KB - Virtual size: 270KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 68KB - Virtual size: 245KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 28KB - Virtual size: 26KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
-
gutou_email_build0411/新云软件.url.url