mystic | 158f241f1bc669c4d687cee3818844b9aab1b19dd252cb463f4f408fcabda355

General

Target

07b63c04cd2b6532b892368ef2b393b6b02f9ba659265c6efb3f81a1ac5089f3.exe
Size

1.2MB
MD5

afa8c1e73c3d66f5e35b9bb18dfa371a
SHA1

f124b5815eeb0e8e5228a7e379ce78f38958d426
SHA256

07b63c04cd2b6532b892368ef2b393b6b02f9ba659265c6efb3f81a1ac5089f3
SHA512

60e493e10252161e7950e133a5432ef2f6c554711fd664f0ec2836601e2e659e7b19432e5ffcad4bf5299fd4678611fa209c6a497e39de1da38ffaaaa8a6acdf
SSDEEP

24576:a683nkpw/6Ds2B6yxBNkMsNkaWNJv+E5C6rEbl:aznkpVDs2nQM4kaWNJv+E5C6rEbl

Score

10^/10

Malware Config

Signatures

Detect Mystic stealer payload 5 IoCs

resource	yara_rule
behavioral1/memory/1444-13-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral1/memory/1444-11-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral1/memory/1444-10-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral1/memory/1444-9-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral1/memory/1444-16-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family

Mystic
Mystic is an infostealer written in C++.
stealer mystic
Mystic family
mystic

Executes dropped EXE 1 IoCs

pid	Process
1444	硺䕢䕅儴坅䕅

Loads dropped DLL 7 IoCs

pid	Process
2824	WerFault.exe
2824	WerFault.exe
2824	WerFault.exe
2824	WerFault.exe
2824	WerFault.exe
2824	WerFault.exe
2824	WerFault.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2620 set thread context of 1444	2620	07b63c04cd2b6532b892368ef2b393b6b02f9ba659265c6efb3f81a1ac5089f3.exe	32

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2824	1444	WerFault.exe	32

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	硺䕢䕅儴坅䕅

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2620 wrote to memory of 1444	2620	07b63c04cd2b6532b892368ef2b393b6b02f9ba659265c6efb3f81a1ac5089f3.exe	32
PID 2620 wrote to memory of 1444	2620	07b63c04cd2b6532b892368ef2b393b6b02f9ba659265c6efb3f81a1ac5089f3.exe	32
PID 2620 wrote to memory of 1444	2620	07b63c04cd2b6532b892368ef2b393b6b02f9ba659265c6efb3f81a1ac5089f3.exe	32
PID 2620 wrote to memory of 1444	2620	07b63c04cd2b6532b892368ef2b393b6b02f9ba659265c6efb3f81a1ac5089f3.exe	32
PID 2620 wrote to memory of 1444	2620	07b63c04cd2b6532b892368ef2b393b6b02f9ba659265c6efb3f81a1ac5089f3.exe	32
PID 2620 wrote to memory of 1444	2620	07b63c04cd2b6532b892368ef2b393b6b02f9ba659265c6efb3f81a1ac5089f3.exe	32
PID 2620 wrote to memory of 1444	2620	07b63c04cd2b6532b892368ef2b393b6b02f9ba659265c6efb3f81a1ac5089f3.exe	32
PID 2620 wrote to memory of 1444	2620	07b63c04cd2b6532b892368ef2b393b6b02f9ba659265c6efb3f81a1ac5089f3.exe	32
PID 2620 wrote to memory of 1444	2620	07b63c04cd2b6532b892368ef2b393b6b02f9ba659265c6efb3f81a1ac5089f3.exe	32
PID 2620 wrote to memory of 1444	2620	07b63c04cd2b6532b892368ef2b393b6b02f9ba659265c6efb3f81a1ac5089f3.exe	32
PID 2620 wrote to memory of 1444	2620	07b63c04cd2b6532b892368ef2b393b6b02f9ba659265c6efb3f81a1ac5089f3.exe	32
PID 1444 wrote to memory of 2824	1444	硺䕢䕅儴坅䕅	33
PID 1444 wrote to memory of 2824	1444	硺䕢䕅儴坅䕅	33
PID 1444 wrote to memory of 2824	1444	硺䕢䕅儴坅䕅	33
PID 1444 wrote to memory of 2824	1444	硺䕢䕅儴坅䕅	33

C:\Users\Admin\AppData\Local\Temp\07b63c04cd2b6532b892368ef2b393b6b02f9ba659265c6efb3f81a1ac5089f3.exe
"C:\Users\Admin\AppData\Local\Temp\07b63c04cd2b6532b892368ef2b393b6b02f9ba659265c6efb3f81a1ac5089f3.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2620
- C:\Users\Admin\AppData\Local\Temp\硺䕢䕅儴坅䕅
  "C:\Users\Admin\AppData\Local\Temp\硺䕢䕅儴坅䕅"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1444
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1444 -s 36
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:2824

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\硺䕢䕅儴坅䕅

Filesize
38KB

MD5
3992f464696b0eeff236aef93b1fdbd5

SHA1
8dddabaea6b342efc4f5b244420a0af055ae691e

SHA256
0d1a8457014f2eb2563a91d1509dba38f6c418fedf5f241d8579d15a93e40e14

SHA512
27a63b43dc50faf4d9b06e10daa15e83dfb3f3be1bd3af83ea6990bd8ae6d3a6a7fc2f928822db972aaf1305970f4587d768d68cd7e1124bc8f710c1d3ee19a6

Download Submit
memory/1444-13-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1444-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1444-11-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1444-10-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1444-9-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1444-7-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1444-6-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1444-5-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1444-16-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/2620-24-0x000000013F620000-0x000000013F6DA000-memory.dmp

Filesize
744KB

Download

Analysis

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