Static task
static1
Behavioral task
behavioral1
Sample
chgrp.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
chgrp.exe
Resource
win10v2004-20240508-en
General
-
Target
chgrp.exe
-
Size
40KB
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MD5
90bbcc2f5ea8dd743c0adaeffe6e2fd7
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SHA1
8ab2b57ac5abe7fd25c9792c80c62445e46e143b
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SHA256
0141ccb4845d624060aef6e970dac87eac6741be4d6cbed3a85a22005ab3f4aa
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SHA512
99984844e5cfc8f0ba9431bc449dd85bd63a74218c88f52ade21946def39b9da82749a50fa666091b7d12327af61074077697ca9d770f12a4bf9c83c184fe139
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SSDEEP
768:4EnNCiD5aTj/D+l748Ca1GiVwGwtOVPhyqVZM:4En0iD5oeJw2wHtOL
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource chgrp.exe
Files
-
chgrp.exe.exe windows:4 windows x86 arch:x86
9842fedcbdec4bd0f2cc25c38dfd76ed
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
IMAGE_FILE_DEBUG_STRIPPED
Imports
msys-1.0
__assert
__errno
__main
_ctype_
abort
atexit
calloc
close
closedir
cygwin_conv_to_posix_path
cygwin_internal
dirfd
dll_crt0__FP11per_process
endgrent
exit
fchdir
fchown
fclose
fcntl
fflush
fprintf
fputs
free
fstat
getenv
getgrgid
getgrnam
getpwuid
lchown
lstat
malloc
memcpy
memmove
memset
open
opendir
putc
qsort
readdir
realloc
setlocale
stat
strchr
strcmp
strcpy
strerror
strlen
strncmp
strrchr
strtoul
vsnprintf
msys-intl-8
__printf__
libintl_bindtextdomain
libintl_fprintf
libintl_gettext
libintl_textdomain
libintl_vfprintf
kernel32
GetModuleFileNameA
GetModuleHandleA
GetStdHandle
VirtualProtect
VirtualQuery
WriteFile
Sections
.text Size: 30KB - Virtual size: 30KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 6KB - Virtual size: 5KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.data_cy Size: 512B - Virtual size: 4B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.bss Size: - Virtual size: 572B
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 2KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE