quasar | New folder[.]zip | Triage

Sharing

General

Target

New folder.zip
Size

13.3MB
MD5

1694ee8a09ebbe56390c44bae9307406
SHA1

0f1886e199b60d9abd87e786e49f8a0557031052
SHA256

7aa6c2e38366d1b553ce56e67f35cfa687e4ba0f7c3eaa404f5ba2449af9fbe5
SHA512

8417fa25bd4769e747e539804c92223ae88c1879a8c9f3aad5e3a2f990db47d1cf319f3777cffc259fe6bff0312664f8621434419fc427d67aafdc56aa834c18
SSDEEP

393216:0PfDzPD8hpXYoKMFJ4PT61E0WTTPuRr0r1+:0Pf/PY7MPTd0WTatw1+

Score

10^/10

office04 quasar

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

10.240.115.45:4782

Mutex

2cc201c7-b02e-4a34-8806-aa9a8d33ae2d

Attributes

encryption_key
64024FEFC383421D2550E88D4DBE252B6BA53116
install_name
Client.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Quasar Client Startup
subdirectory
SubDir

Signatures

Quasar family
quasar
Quasar payload 1 IoCs

Processes:

resource yara_rule

static1/unpack001/New folder/Client-built - Copy.exe family_quasar
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.

Processes:

resource

unpack001/New folder/Client-built - Copy.exe

Files

New folder.zip
.zip
New folder/Client-built - Copy.exe
.exe windows:4 windows x86 arch: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
New folder/hamachi.msi
.msi