quasar | d977d80c3735df4761faf5e37f8f4874b36d2c1d6aaa731f4e37b36c813e5754

Analysis

max time kernel
25s
max time network
110s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
29-12-2023 23:59

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General

Target

07d0c0de71b135af74f710585f13aa33.exe
Size

659KB
MD5

07d0c0de71b135af74f710585f13aa33
SHA1

33c94cc78d9c48c04bda301c6d24069ddab11c63
SHA256

d977d80c3735df4761faf5e37f8f4874b36d2c1d6aaa731f4e37b36c813e5754
SHA512

326fc2a1a015c9d45cb271d86d3d6e738c33f93ad38aa462aad9ea8d7de8a0a052fb53327fd8dd73013b51d079f1c9248930e07cdfb01b80eb3595372a6419b5
SSDEEP

12288:0hIG3Kl8pyP6f+SJ41gVbOmV8NXelO7eA82U:qX3M36XJ4+0wtH2U

Score

10^/10

quasar zgrat office04w persistence rat spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.0

Botnet

Office04w

societyf500.ddns.net:5490

Mutex

f4264bdc-b486-4a30-a042-2bcfb907b3c7

Attributes

encryption_key
0204DFA093E27B72F1617CCEA6076BCCE5D0A482
install_name
dwmq.exe
log_directory
Logs
reconnect_delay
3000
startup_key
dwmq
subdirectory
explorer

Signatures

Detect ZGRat V1 34 IoCs

resource	yara_rule
behavioral2/memory/4976-9-0x0000000006EF0000-0x0000000006F62000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-25-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-47-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-65-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-73-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-71-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-69-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-67-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-63-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-61-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-59-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-57-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-55-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-53-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-51-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-49-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-45-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-43-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-41-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-39-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-37-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-35-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-33-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-31-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-29-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-27-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-23-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-21-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-19-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-17-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-15-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-13-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-11-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4976-10-0x0000000006EF0000-0x0000000006F5C000-memory.dmp	family_zgrat_v1

Quasar RAT
Quasar is an open source Remote Access Tool.
trojan spyware quasar

Quasar payload 1 IoCs

resource	yara_rule
behavioral2/memory/432-2246-0x0000000000400000-0x0000000000484000-memory.dmp	family_quasar

ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NVA = "\"C:\\Users\\Admin\\AppData\\Local\\NVA.exe\""	07d0c0de71b135af74f710585f13aa33.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4976	07d0c0de71b135af74f710585f13aa33.exe

C:\Users\Admin\AppData\Local\Temp\07d0c0de71b135af74f710585f13aa33.exe
"C:\Users\Admin\AppData\Local\Temp\07d0c0de71b135af74f710585f13aa33.exe"
1⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:4976
- C:\Users\Admin\AppData\Local\Temp\07d0c0de71b135af74f710585f13aa33.exe
  C:\Users\Admin\AppData\Local\Temp\07d0c0de71b135af74f710585f13aa33.exe
  2⤵
  PID:432

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\07d0c0de71b135af74f710585f13aa33.exe.log

Filesize
1KB

MD5
b5291f3dcf2c13784e09a057f2e43d13

SHA1
fbb72f4b04269e0d35b1d9c29d02d63dbc7ad07e

SHA256
ad995b51344d71019f96fc3a424de00256065daad8595ff599f6849c87ae75ce

SHA512
11c89caac425bccaa24e2bb24c6f2b4e6d6863278bf8a5304a42bb44475b08ca586e09143e7d5b14db7f1cd9adacd5358769e0d999dc348073431031067bd4d4

Download Submit
memory/432-2246-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/432-2247-0x00000000053C0000-0x00000000053D0000-memory.dmp

Filesize
64KB

Download
memory/432-2245-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/432-2248-0x0000000006630000-0x0000000006C48000-memory.dmp

Filesize
6.1MB

Download
memory/432-2252-0x00000000053C0000-0x00000000053D0000-memory.dmp

Filesize
64KB

Download
memory/432-2251-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/432-2250-0x00000000060D0000-0x0000000006182000-memory.dmp

Filesize
712KB

Download
memory/432-2249-0x0000000005720000-0x0000000005770000-memory.dmp

Filesize
320KB

Download
memory/4976-194-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/4976-43-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-6-0x0000000006D00000-0x0000000006D76000-memory.dmp

Filesize
472KB

Download
memory/4976-7-0x0000000006C80000-0x0000000006CFC000-memory.dmp

Filesize
496KB

Download
memory/4976-8-0x0000000005E80000-0x0000000005E9E000-memory.dmp

Filesize
120KB

Download
memory/4976-9-0x0000000006EF0000-0x0000000006F62000-memory.dmp

Filesize
456KB

Download
memory/4976-25-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-47-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-65-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-73-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-71-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-69-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-67-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-63-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-61-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-59-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-57-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-5-0x0000000005B00000-0x0000000005B0A000-memory.dmp

Filesize
40KB

Download
memory/4976-55-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-53-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-51-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-49-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-45-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-2-0x0000000005ED0000-0x0000000006474000-memory.dmp

Filesize
5.6MB

Download
memory/4976-41-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-39-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-37-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-35-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-33-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-31-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-29-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-27-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-23-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-21-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-19-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-17-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-15-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-13-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-11-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-10-0x0000000006EF0000-0x0000000006F5C000-memory.dmp

Filesize
432KB

Download
memory/4976-1688-0x0000000005A10000-0x0000000005A20000-memory.dmp

Filesize
64KB

Download
memory/4976-4-0x0000000005A10000-0x0000000005A20000-memory.dmp

Filesize
64KB

Download
memory/4976-3-0x0000000005A20000-0x0000000005AB2000-memory.dmp

Filesize
584KB

Download
memory/4976-0-0x0000000000EB0000-0x0000000000F5A000-memory.dmp

Filesize
680KB

Download
memory/4976-1-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/4976-2244-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads