2026-07-29_a2f5a41b5f3a4e28a9a81cd009bd8f46_akira_cobalt-strike_glassworm

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General

Target
2026-07-29_a2f5a41b5f3a4e28a9a81cd009bd8f46_akira_cobalt-strike_glassworm
Size 551KB
Sample260729-c3asmafk6w
SHA256 4cbdfd2d345c1857ea833c68d6f435e523519a0dd1a3f36c80c3c6e4d6055b3a
MD5 a2f5a41b5f3a4e28a9a81cd009bd8f46
SHA1 46d8730f288df41d51b711da3cd8ae97f22bf98e
SHA512 b072f97db70ece126e09a73136ebe7e867992bd19803d8279c1be8823ce70f446494cba001f46e88232840778e06918cee2d2a2faee3ca3375dedf81fabc79b0
SSDEEP 6144:30KcvdmtDxSJqOppz70NtykMk9DKN2pgHHaMENqd+y6xJXCDR+f2cj3GdRRyWkLG:6d2xIWjgnaMqlfr2ca7RXk9dpSot38dH
TLSH
T129C45B07F69490F8D19BC0B8874B9636AA33B8890224B97F07E487312FA5F615F1E71D
MD5 SHA1 SHA512 SSDEEP TLSH

Score

5^/10

Malware Config

Signatures

Codesign digest Mismatch 1 IoCs

File was altered after it was signed.

resource
2026-07-29_a2f5a41b5f3a4e28a9a81cd009bd8f46_akira_cobalt-strike_glassworm

File Explorer

2026-07-29_a2f5a41b5f3a4e28a9a81cd009bd8f46_akira_cobalt-strike_glassworm

.exe 551KB

2026-07-29_a2f5a41b5f3a4e28a9a81cd009bd8f46_akira_cobalt-strike_glassworm

IMPHASH 571df6d2bfcbe221287ee6c433361e1c
SHA256 4cbdfd2d345c1857ea833c68d6f435e523519a0dd1a3f36c80c3c6e4d6055b3a
MD5 a2f5a41b5f3a4e28a9a81cd009bd8f46
SHA1 46d8730f288df41d51b711da3cd8ae97f22bf98e
SHA512 b072f97db70ece126e09a73136ebe7e867992bd19803d8279c1be8823ce70f446494cba001f46e88232840778e06918cee2d2a2faee3ca3375dedf81fabc79b0
SSDEEP 6144:30KcvdmtDxSJqOppz70NtykMk9DKN2pgHHaMENqd+y6xJXCDR+f2cj3GdRRyWkLG:6d2xIWjgnaMqlfr2ca7RXk9dpSot38dH
TLSH
T129C45B07F69490F8D19BC0B8874B9636AA33B8890224B97F07E487312FA5F615F1E71D
MD5 SHA1 SHA512 SSDEEP TLSH

windows:4 windows x64 arch:x64

Codesign digest Mismatch

File was altered after it was signed.

PE Signature issue

Digest

68:75:95:0e:1e:c0:21:9b:d5:17:56:21:5e:1c:ca:35:a2:01:46:42:f9:5b:8e:f5:62:a4:85:d3:0b:d7:3b:60

Digest Algorithm

sha256

PE Digests Matches

Not matched

Trusted

Not trusted

Signing Certificate

CN=*.kalo.kr

Chains

Aug 16, 2025

CN=*.kalo.kr

CN=Sectigo RSA Domain Validation Secure Server CA,O=Sectigo Limited,L=Salford,ST=Greater Manchester,C=GB

CN=USERTrust RSA Certification Authority,O=The USERTRUST Network,L=Jersey City,ST=New Jersey,C=US

CN=*.kalo.kr

CN=Sectigo RSA Domain Validation Secure Server CA,O=Sectigo Limited,L=Salford,ST=Greater Manchester,C=GB

CN=USERTrust RSA Certification Authority,O=The USERTRUST Network,L=Jersey City,ST=New Jersey,C=US

Subject

CN=USERTrust RSA Certification Authority,O=The USERTRUST Network,L=Jersey City,ST=New Jersey,C=US

Serial Number

01:fd:6d:30:fc:a3:ca:51:a8:1b:bc:64:0e:35:03:2d

Issuer

CN=USERTrust RSA Certification Authority,O=The USERTRUST Network,L=Jersey City,ST=New Jersey,C=US

Key Usages

KeyUsageCertSign, KeyUsageCRLSign

Timespan

Feb 1, 2010 - Jan 18, 2038

Subject

CN=Sectigo RSA Domain Validation Secure Server CA,O=Sectigo Limited,L=Salford,ST=Greater Manchester,C=GB

Serial Number

7d:5b:51:26:b4:76:ba:11:db:74:16:0b:bc:53:0d:a7

Issuer

CN=USERTrust RSA Certification Authority,O=The USERTRUST Network,L=Jersey City,ST=New Jersey,C=US

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Ext Key Usages

ExtKeyUsageServerAuth, ExtKeyUsageClientAuth

Revocation Status

Not revoked

Timespan

Nov 2, 2018 - Dec 31, 2030

Subject

CN=*.kalo.kr

Serial Number

57:6e:40:e7:d7:3f:70:90:4f:8f:71:8c:12:b7:6f:30

Issuer

CN=Sectigo RSA Domain Validation Secure Server CA,O=Sectigo Limited,L=Salford,ST=Greater Manchester,C=GB

Key Usages

KeyUsageDigitalSignature, KeyUsageKeyEncipherment

Ext Key Usages

ExtKeyUsageServerAuth, ExtKeyUsageClientAuth

Revocation Status

Not revoked

Timespan

Jan 8, 2025 - Jan 18, 2026

Subject

CN=Sectigo Public Time Stamping Root R46,O=Sectigo Limited,C=GB

Serial Number

36:c2:b0:bd:7c:1b:3a:e7:a3:b3:dd:36:cb:c9:75:68

Issuer

CN=USERTrust RSA Certification Authority,O=The USERTRUST Network,L=Jersey City,ST=New Jersey,C=US

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Ext Key Usages

ExtKeyUsageTimeStamping

Revocation Status

Not revoked

Timespan

Mar 22, 2021 - Jan 18, 2038

Subject

CN=Sectigo Public Time Stamping CA R36,O=Sectigo Limited,C=GB

Serial Number

7a:23:ae:da:53:69:96:0f:91:c8:3e:5c:f4:c7:e3:3f

Issuer

CN=Sectigo Public Time Stamping Root R46,O=Sectigo Limited,C=GB

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Ext Key Usages

ExtKeyUsageTimeStamping

Revocation Status

Not revoked

Timespan

Mar 22, 2021 - Mar 21, 2036

Subject

CN=Sectigo Public Time Stamping Signer R36,O=Sectigo Limited,ST=West Yorkshire,C=GB

Serial Number

a4:29:3b:6e:1e:dd:d7:a7:34:08:87:ad:7a:4e:b7:24

Issuer

CN=Sectigo Public Time Stamping CA R36,O=Sectigo Limited,C=GB

Key Usages

KeyUsageDigitalSignature, KeyUsageContentCommitment

Ext Key Usages

ExtKeyUsageTimeStamping

Revocation Status

Not revoked

Timespan

Mar 27, 2025 - Mar 21, 2036

Minor OS version

Major OS version

Entry point

5088

Magic Number

523

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LINE_NUMS_STRIPPED IMAGE_FILE_LOCAL_SYMS_STRIPPED IMAGE_FILE_LARGE_ADDRESS_AWARE IMAGE_FILE_DEBUG_STRIPPED

PDB paths

advapi32

SystemFunction036

bcrypt

BCryptGenRandom

kernel32

AddVectoredExceptionHandler CloseHandle CreateFileMappingA CreateFileW CreateMutexW CreateThread CreateToolhelp32Snapshot DeleteFileW DuplicateHandle ExitProcess FindClose FindFirstFileExW FindNextFileW FormatMessageW FreeLibrary GetConsoleMode GetConsoleOutputCP GetCurrentDirectoryW GetCurrentProcess GetCurrentThread GetEnvironmentVariableW GetFileInformationByHandle GetFileInformationByHandleEx GetFullPathNameW GetLastError GetModuleHandleA GetModuleHandleW GetProcAddress GetProcessHeap GetStdHandle GetSystemInfo HeapAlloc HeapFree HeapReAlloc InitOnceBeginInitialize InitOnceComplete LoadLibraryA MapViewOfFile Module32FirstW Module32NextW MultiByteToWideChar QueryPerformanceCounter QueryPerformanceFrequency RtlCaptureContext RtlLookupFunctionEntry RtlVirtualUnwind SetFileInformationByHandle SetFilePointerEx SetFileTime SetLastError SetProcessMitigationPolicy SetThreadStackGuarantee SetUnhandledExceptionFilter Sleep TlsAlloc TlsFree TlsGetValue TlsSetValue UnmapViewOfFile WaitForSingleObject WriteConsoleW DeleteCriticalSection EnterCriticalSection InitializeCriticalSection LeaveCriticalSection RaiseException RtlUnwindEx VirtualProtect VirtualQuery __C_specific_handler

ntdll

NtReadFile NtWriteFile RtlNtStatusToDosError

api-ms-win-core-synch-l1-2-0

WaitOnAddress WakeByAddressAll WakeByAddressSingle

bcryptprimitives

ProcessPrng

api-ms-win-crt-environment-l1-1-0

__p__environ

api-ms-win-crt-heap-l1-1-0

_set_new_mode calloc free malloc

api-ms-win-crt-locale-l1-1-0

_configthreadlocale

api-ms-win-crt-math-l1-1-0

__setusermatherr pow

api-ms-win-crt-private-l1-1-0

memcmp memcpy memmove

api-ms-win-crt-runtime-l1-1-0

_set_app_type __p___argc __p___argv _cexit _configure_narrow_argv _crt_atexit _exit _fpreset _initialize_narrow_environment _initterm _initterm_e _set_invalid_parameter_handler abort exit signal

api-ms-win-crt-stdio-l1-1-0

__acrt_iob_func __p__commode __p__fmode __stdio_common_vfprintf

api-ms-win-crt-string-l1-1-0

memset strlen strncmp

Name

.text

Size

416KB

Virtual Size

416KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.data

Size

3KB

Virtual Size

2KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rdata

Size

76KB

Virtual Size

76KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.eh_fram

Size

512B

Virtual Size

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

14KB

Virtual Size

13KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.xdata

Size

20KB

Virtual Size

20KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.bss

Size

Virtual Size

672B

Characteristics

IMAGE_SCN_CNT_UNINITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.idata

Size

5KB

Virtual Size

5KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.tls

Size

512B

Virtual Size

16B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.reloc

Size

2KB

Virtual Size

2KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

2026-07-29_a2f5a41b5f3a4e28a9a81cd009bd8f46_akira_cobalt-strike_glassworm

PE Signature issue

advapi32

bcrypt

kernel32

ntdll

api-ms-win-core-synch-l1-2-0

bcryptprimitives

api-ms-win-crt-environment-l1-1-0

api-ms-win-crt-heap-l1-1-0

api-ms-win-crt-locale-l1-1-0

api-ms-win-crt-math-l1-1-0

api-ms-win-crt-private-l1-1-0

api-ms-win-crt-runtime-l1-1-0

api-ms-win-crt-stdio-l1-1-0

api-ms-win-crt-string-l1-1-0

generic