quasar | BITCOIN GEN PRIVATE[.]zip | Triage

Sharing

General

Target

BITCOIN GEN PRIVATE.zip
Size

1.2MB
MD5

2e0fc78070cbd8de4396acfe491986ac
SHA1

f6bf2b612f83f90483d12792696f9529840ad3ac
SHA256

ce179bf67e184c300fbc5b796ef511c14470a9d3c970298bc8e52beaf7fb1195
SHA512

dfcb0391f27912eb0bef5ba9dcfcfaff38f9a6886ffbd23e2ca70ec66a203050fbbe22544894936653cf99bc2c86948692b0e43e87377a5088c59a079167b814
SSDEEP

24576:2pXWKEEizZPwD9NzHNTjInXCzJ9tgNODSY/X/ifKsxA42DUSL6/:2lW12zFISWisxA42Yw6/

Score

10^/10

office04 quasar

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.56.1:4782

Mutex

275f2628-c225-4b94-8c3e-6fb61e5e53af

Attributes

encryption_key
F72BC567B8A2606D9029D70BA29A969A6DEB42D8
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

resource	yara_rule
static1/unpack001/BITCOIN GEN PRIVATE/Bitcoingens.pdf.exe	family_quasar

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack001/BITCOIN GEN PRIVATE/Bitcoingens.pdf.exe

Files

BITCOIN GEN PRIVATE.zip
.zip
BITCOIN GEN PRIVATE/Bitcoingens.pdf.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