quasar | Vanta-Fn[.]exe | Triage

Sharing

General

Target

Vanta-Fn.exe
Size

3.1MB
MD5

d41852e4e97ade129efe94cf773d10ff
SHA1

f999477106a8ea6506905abe6effe054c8e3db3b
SHA256

996afa4a4194a60b56825e8589b8cd028cb593f6a619370c15ec04fa2659e500
SHA512

4862f158153d25647901195e6f294bdb1c13ad8ffcaebe000f702f5c1fa49e631b04830baa27e172acf58b1bacbbefb3f99bf6a5d44d90ec21e3b8d9a20ee8cf
SSDEEP

49152:iv4hBYjCO4Dt2d5aKCuVPzlEmVQL0wvwkaGRepECs+k/iLkoGdQTHHB72eh2NT:ivqt2d5aKCuVPzlEmVQ0wvwfGReNg

Score

10^/10

office04 quasar

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

connorb839-25244.portmap.host:25244

Mutex

f2898513-d005-492e-9b72-aa39b77b1a27

Attributes

encryption_key
8CC861C5A1B05D3DCE95956911FE36B8D1042D36
install_name
Epic web repair tool.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Epic web repair
subdirectory
Epicwebservicesltd

Signatures

Quasar family
quasar
Quasar payload 1 IoCs

Processes:

resource yara_rule

sample family_quasar

Files

Vanta-Fn.exe
.exe windows x86

f34d5f2d4577ed6d9ceec516c1f5a744

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: 3.1MB - Virtual size: 3.1MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rsrc
Size: 3KB - Virtual size: 2KB

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