mystic | 35e871ce220fc8db7bbac31d6083ac0873febff3510d2de8583011aedee458e0

Analysis

max time kernel
142s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
09-05-2024 10:39

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General

Target

6603f1832a5054b7e8305ef7814111e74fc6f8356ae86cc81f0bd306722236ef.exe
Size

584KB
MD5

31ce9a49141437fb448fab38300b7e7b
SHA1

653cf066c5eb2fd5b1b1e664a1890ff6d98ad37e
SHA256

6603f1832a5054b7e8305ef7814111e74fc6f8356ae86cc81f0bd306722236ef
SHA512

87d40d1d5af991eb0ba75d55b9900ea886b0e806c9ac7fb6355032a8fec7c2c1daa9f9bbbfa11c8b25c45e79c67aa34d56fc3296b0b2141d1cb835f4126543cd
SSDEEP

12288:XMrNy90X7lPtx1KI6xQVx51L9/ErNwIujDiwu:uy6KI/Vp+BfujD9u

Score

10^/10

mystic redline kukish infostealer persistence stealer

Malware Config

Extracted

Family

redline

Botnet

kukish

77.91.124.55:19071

Signatures

Detect Mystic stealer payload 4 IoCs

resource	yara_rule
behavioral6/memory/1420-14-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral6/memory/1420-15-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral6/memory/1420-18-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral6/memory/1420-16-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family

Mystic
Mystic is an infostealer written in C++.
stealer mystic
RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
infostealer redline

RedLine payload 2 IoCs

resource	yara_rule
behavioral6/files/0x00070000000235a8-20.dat	family_redline
behavioral6/memory/888-22-0x0000000000CE0000-0x0000000000D1E000-memory.dmp	family_redline

Executes dropped EXE 3 IoCs

pid	Process
4808	qk0xJ8wy.exe
208	1fP23pb2.exe
888	2Ya233IG.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	6603f1832a5054b7e8305ef7814111e74fc6f8356ae86cc81f0bd306722236ef.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup1 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP001.TMP\\\""	qk0xJ8wy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 208 set thread context of 1420	208	1fP23pb2.exe	100

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3732	208	WerFault.exe	89
3172	1420	WerFault.exe	100

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 860 wrote to memory of 4808	860	6603f1832a5054b7e8305ef7814111e74fc6f8356ae86cc81f0bd306722236ef.exe	88
PID 860 wrote to memory of 4808	860	6603f1832a5054b7e8305ef7814111e74fc6f8356ae86cc81f0bd306722236ef.exe	88
PID 860 wrote to memory of 4808	860	6603f1832a5054b7e8305ef7814111e74fc6f8356ae86cc81f0bd306722236ef.exe	88
PID 4808 wrote to memory of 208	4808	qk0xJ8wy.exe	89
PID 4808 wrote to memory of 208	4808	qk0xJ8wy.exe	89
PID 4808 wrote to memory of 208	4808	qk0xJ8wy.exe	89
PID 208 wrote to memory of 1420	208	1fP23pb2.exe	100
PID 208 wrote to memory of 1420	208	1fP23pb2.exe	100
PID 208 wrote to memory of 1420	208	1fP23pb2.exe	100
PID 208 wrote to memory of 1420	208	1fP23pb2.exe	100
PID 208 wrote to memory of 1420	208	1fP23pb2.exe	100
PID 208 wrote to memory of 1420	208	1fP23pb2.exe	100
PID 208 wrote to memory of 1420	208	1fP23pb2.exe	100
PID 208 wrote to memory of 1420	208	1fP23pb2.exe	100
PID 208 wrote to memory of 1420	208	1fP23pb2.exe	100
PID 208 wrote to memory of 1420	208	1fP23pb2.exe	100
PID 4808 wrote to memory of 888	4808	qk0xJ8wy.exe	106
PID 4808 wrote to memory of 888	4808	qk0xJ8wy.exe	106
PID 4808 wrote to memory of 888	4808	qk0xJ8wy.exe	106

C:\Users\Admin\AppData\Local\Temp\6603f1832a5054b7e8305ef7814111e74fc6f8356ae86cc81f0bd306722236ef.exe
"C:\Users\Admin\AppData\Local\Temp\6603f1832a5054b7e8305ef7814111e74fc6f8356ae86cc81f0bd306722236ef.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:860
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\qk0xJ8wy.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\qk0xJ8wy.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:4808
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1fP23pb2.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1fP23pb2.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:208
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:1420
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1420 -s 200
        5⤵
        Program crash
        
        PID:3172
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 208 -s 580
      4⤵
      Program crash
      PID:3732
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2Ya233IG.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2Ya233IG.exe
    3⤵
    - Executes dropped EXE
    PID:888

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4100,i,13544508926340531097,6671217806016090640,262144 --variations-seed-version --mojo-platform-channel-handle=4020 /prefetch:8
1⤵
PID:616

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1420 -ip 1420
1⤵
PID:3180

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 208 -ip 208
1⤵
PID:1552

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\Temp\IXP000.TMP\qk0xJ8wy.exe

Filesize
383KB

MD5
a5f40f49be626b3d49afc54abca0df4c

SHA1
305c12ca26a7397ab19434da0cb5f5f93e9c8ca7

SHA256
7f6a3b8d75ee9de05d60eea1e8d16c64b8af8566289dd65069e08235a428204d

SHA512
9af8e465ddc425d92f3fa6ae69af94ba170f1eb454ccef5ef9f076ebdc7a45c624d4fa9595855e97d004ccb7823aa170a36a395f49700aff036a9560ba006c39

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1fP23pb2.exe

Filesize
298KB

MD5
0dbbfc77261bb28a7a66a519dcbb7ee8

SHA1
14eef80d6956187263f263106c4ffe875a0b51a1

SHA256
a7973f42e23a6e493e302c19f8700cdc2dd52972806dd3c766a9cd2d2859424c

SHA512
68f2d5b084981fd8a502e9304f4d58fb9e04dbd3e9fc9439b914eadd975066794b5912bf0dfea8e3bd6a61669cf709eaf4706b0588d73503c7a357a77bee6873

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2Ya233IG.exe

Filesize
222KB

MD5
04300359ab5fa6abbf3a216366ea721c

SHA1
f34569fa5b94f6e12de2c4c15d8e58545f28913a

SHA256
3c1952040fb901fdc14ade2b23c756d394b6e5d3c1ae19a40e7520a905570ff5

SHA512
8333593f57bafde57c4a586160f703e2898b7a4d3e592ad593432b9b53158b6d3b8d469c89144afd4effbf212debc39dcb2c3cb7a6e91f8e13d13a7fc9df64ad

Download Submit
memory/888-27-0x0000000007F60000-0x000000000806A000-memory.dmp

Filesize
1.0MB

Download
memory/888-22-0x0000000000CE0000-0x0000000000D1E000-memory.dmp

Filesize
248KB

Download
memory/888-23-0x0000000008080000-0x0000000008624000-memory.dmp

Filesize
5.6MB

Download
memory/888-24-0x0000000007AD0000-0x0000000007B62000-memory.dmp

Filesize
584KB

Download
memory/888-25-0x0000000003040000-0x000000000304A000-memory.dmp

Filesize
40KB

Download
memory/888-26-0x0000000008C50000-0x0000000009268000-memory.dmp

Filesize
6.1MB

Download
memory/888-28-0x0000000007DD0000-0x0000000007DE2000-memory.dmp

Filesize
72KB

Download
memory/888-29-0x0000000007E50000-0x0000000007E8C000-memory.dmp

Filesize
240KB

Download
memory/888-30-0x0000000007E90000-0x0000000007EDC000-memory.dmp

Filesize
304KB

Download
memory/1420-18-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1420-16-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1420-15-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1420-14-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads