quasar | Client-built[.]exe2[.]exe | Triage

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General

Target

Client-built.exe2.exe
Size

502KB
MD5

f583c7c17a7c0fda7e50150abf56e6c1
SHA1

aa23e5c0d1abc649e453407f551ac3c04b3e28ad
SHA256

22ec7e7cd58f6759777fd2b14716aa349997eb138eeff0555d7a411f05331521
SHA512

0cd3da5723219a146fb231108c91acfcb75b5a4081f38196b423a780baf5b311c6fb00073ff5abfd67545a75e0f3b91f43bed8d1081a22343460c65f691c10c4
SSDEEP

6144:MTEgdc0Y+ebGbXOsA6j1RdhlOH19ZTPH7IGcESnb8F9BabRdZla3zGgqjcTR36:MTEgdfYUA69vGCEfaazGgqjcd6

Score

10^/10

office04 quasar

Malware Config

Extracted

Family

quasar

Version

1.4.0

Botnet

Office04

C2

considered-arrest.at.ply.gg:19159

Mutex

03859749-3e89-42e3-8b50-858091c42afe

Attributes

encryption_key
3E946EA967E48A1C0D29A6230F90CFD5213732DE
install_name
Client.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Windows Defender.exe
subdirectory
SubDir

Signatures

Quasar family
quasar

Quasar payload 1 IoCs

resource	yara_rule
sample	family_quasar

Files

Client-built.exe2.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: 498KB - Virtual size: 497KB

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