quasar | Client-built[.]exe | Triage

Sharing

General

Target

Client-built.exe
Size

3.1MB
MD5

5e3064f23dddf22df2101a997691a696
SHA1

232e882b7bc054e481c70c894aca6269c1f9316d
SHA256

e0f72d48e121eb069eed758c81643f435997e300a961162d0d884bb49219d2c9
SHA512

ac3bfdf2d5eee1725fa84a2a91004012a88c090ab18e0d8639d23df17bc938b34d7ae0b19b7243850071031b62bbd8874975e006bf295886a4ee28dc4e01a23f
SSDEEP

49152:nvkG42pda6D+/PjlLOlg6yQipVLH88o5NBFBeTHoGv5ULTHHB72eh2NT:nvP42pda6D+/PjlLOlZyQipVLc87

Score

10^/10

office04 quasar

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

193.161.193.99:1194

v4lc-36448.portmap.host:36448:1194

Mutex

a25b5bbf-cc69-4b0b-a242-9d07a80705d5

Attributes

encryption_key
23DCD2457576BD8C17F35C9C4F50BF16D2C7C161
install_name
FlipHood.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Quasar Client Startup
subdirectory
SubDir

Signatures

Quasar family
quasar

Quasar payload 1 IoCs

resource	yara_rule
sample	family_quasar

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
Client-built.exe

Files

Client-built.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