mystic | c4cbf7a8ca90df698d3ebc4580e1f0b73aca2ef45e3748c019af83e8d3057dfc

Analysis

max time kernel
140s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231025-en
resource tags

arch:x64arch:x86image:win10v2004-20231025-enlocale:en-usos:windows10-2004-x64system
submitted
09/11/2023, 21:46

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General

Target
7dd204fcc12430937185c9453119c3f8.exe
Size 511KB
Sample231109-1mlrysfg67
SHA256 c4cbf7a8ca90df698d3ebc4580e1f0b73aca2ef45e3748c019af83e8d3057dfc
MD5 7dd204fcc12430937185c9453119c3f8
SHA1 14faa6ad329ac195d9bd9b7bae5b8ed638f52732
SHA512 478350d4cd519cdbd1a6cf1b7428fdc0aaa5f4e13f3fe34af2a0842e94df3a2cf012d1a8b69ccd1cd9dcd27992cf99b636fef1f47df3079990a1fbed66544eb4
SSDEEP 12288:OMr/y90LVLzOinDPw3rM8LFY8TUs2auF+4+wSRvFcL5GqPRqDHg:5yc2iD2rRFYSz2au4USVmgqZqjg
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

mystic redline taiga infostealer persistence stealer

Malware Config

Extracted

Family

redline

Botnet

taiga

5.42.92.51:19057

Signatures

Detect Mystic stealer payload 4 IoCs

resource	yara_rule
behavioral1/memory/4388-14-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral1/memory/4388-15-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral1/memory/4388-16-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral1/memory/4388-18-0x0000000000400000-0x0000000000433000-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 1 IoCs

resource	yara_rule
behavioral1/memory/388-22-0x0000000000400000-0x000000000043C000-memory.dmp	family_redline

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\Control Panel\International\Geo\Nation	7Xw9Eh84.exe

Executes dropped EXE 4 IoCs

pid	Process
4360	An6Ot68.exe
3108	1tX82gf4.exe
5012	2qJ2521.exe
4076	7Xw9Eh84.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\\\""	7dd204fcc12430937185c9453119c3f8.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\\\""	An6Ot68.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3108 set thread context of 4388	3108	1tX82gf4.exe	91
PID 5012 set thread context of 388	5012	2qJ2521.exe	98

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2548	4388	WerFault.exe	91

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4552 wrote to memory of 4360	4552	7dd204fcc12430937185c9453119c3f8.exe	86
PID 4552 wrote to memory of 4360	4552	7dd204fcc12430937185c9453119c3f8.exe	86
PID 4552 wrote to memory of 4360	4552	7dd204fcc12430937185c9453119c3f8.exe	86
PID 4360 wrote to memory of 3108	4360	An6Ot68.exe	88
PID 4360 wrote to memory of 3108	4360	An6Ot68.exe	88
PID 4360 wrote to memory of 3108	4360	An6Ot68.exe	88
PID 3108 wrote to memory of 4388	3108	1tX82gf4.exe	91
PID 3108 wrote to memory of 4388	3108	1tX82gf4.exe	91
PID 3108 wrote to memory of 4388	3108	1tX82gf4.exe	91
PID 3108 wrote to memory of 4388	3108	1tX82gf4.exe	91
PID 3108 wrote to memory of 4388	3108	1tX82gf4.exe	91
PID 3108 wrote to memory of 4388	3108	1tX82gf4.exe	91
PID 3108 wrote to memory of 4388	3108	1tX82gf4.exe	91
PID 3108 wrote to memory of 4388	3108	1tX82gf4.exe	91
PID 3108 wrote to memory of 4388	3108	1tX82gf4.exe	91
PID 3108 wrote to memory of 4388	3108	1tX82gf4.exe	91
PID 4360 wrote to memory of 5012	4360	An6Ot68.exe	94
PID 4360 wrote to memory of 5012	4360	An6Ot68.exe	94
PID 4360 wrote to memory of 5012	4360	An6Ot68.exe	94
PID 5012 wrote to memory of 388	5012	2qJ2521.exe	98
PID 5012 wrote to memory of 388	5012	2qJ2521.exe	98
PID 5012 wrote to memory of 388	5012	2qJ2521.exe	98
PID 5012 wrote to memory of 388	5012	2qJ2521.exe	98
PID 5012 wrote to memory of 388	5012	2qJ2521.exe	98
PID 5012 wrote to memory of 388	5012	2qJ2521.exe	98
PID 5012 wrote to memory of 388	5012	2qJ2521.exe	98
PID 5012 wrote to memory of 388	5012	2qJ2521.exe	98
PID 4552 wrote to memory of 4076	4552	7dd204fcc12430937185c9453119c3f8.exe	99
PID 4552 wrote to memory of 4076	4552	7dd204fcc12430937185c9453119c3f8.exe	99
PID 4552 wrote to memory of 4076	4552	7dd204fcc12430937185c9453119c3f8.exe	99
PID 4076 wrote to memory of 3492	4076	7Xw9Eh84.exe	100
PID 4076 wrote to memory of 3492	4076	7Xw9Eh84.exe	100
PID 4076 wrote to memory of 3492	4076	7Xw9Eh84.exe	100

C:\Users\Admin\AppData\Local\Temp\7dd204fcc12430937185c9453119c3f8.exe
"C:\Users\Admin\AppData\Local\Temp\7dd204fcc12430937185c9453119c3f8.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4552
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\An6Ot68.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\An6Ot68.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:4360
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1tX82gf4.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1tX82gf4.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:3108
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:4388
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4388 -s 540
        5⤵
        Program crash
        
        PID:2548
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2qJ2521.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2qJ2521.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:5012
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:388
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7Xw9Eh84.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7Xw9Eh84.exe
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:4076
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\is64.bat" "
    3⤵
    PID:3492

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4388 -ip 4388
1⤵
PID:4796

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

7Xw9Eh84.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7Xw9Eh84.exe
Size 73KB
SHA256 afdf8291b89b3c8da4dcee7eb30565e81cda392d0d6662737df0f31b6f36e16a
MD5 b16aa39da2a8edb70a754fec84e67dd9
SHA1 2755c118ae80d95bea580d8a421b5a1cc4559c9f
SHA512 eb0565d8d9975705633b2bfdff047ad16618ea279c15b9981434ecc43154546ef66cd8d3ddd4b84bf3d8985508974290db22f4ec427679807f9d5fe53ccb8559
SSDEEP 1536:5bIqfS0bO7B7wTewJk9WeBLYVrx8AA0oL:5Rfet7wTewJk9lSCj0oL
MD5 SHA1 SHA512 SSDEEP

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7Xw9Eh84.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7Xw9Eh84.exe
Size 73KB
SHA256 afdf8291b89b3c8da4dcee7eb30565e81cda392d0d6662737df0f31b6f36e16a
MD5 b16aa39da2a8edb70a754fec84e67dd9
SHA1 2755c118ae80d95bea580d8a421b5a1cc4559c9f
SHA512 eb0565d8d9975705633b2bfdff047ad16618ea279c15b9981434ecc43154546ef66cd8d3ddd4b84bf3d8985508974290db22f4ec427679807f9d5fe53ccb8559
SSDEEP 1536:5bIqfS0bO7B7wTewJk9WeBLYVrx8AA0oL:5Rfet7wTewJk9lSCj0oL
MD5 SHA1 SHA512 SSDEEP

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An6Ot68.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\An6Ot68.exe
Size 389KB
SHA256 54a5228a0ab6d4fbd1825722392acf2ba3386106069d377ff2c9f6441cabed6f
MD5 783c691a3a26262a0de8305536ce56e6
SHA1 2f5d2cb6efee6b08cc7dd7a99e6b04e8b399080d
SHA512 b3579c6ba112b8d729174182744636d68a9fd9ebdd40294c187b6226cb53b70e8615398272416bde52822b45de4a94934283e380289694650da90a77237a3900
SSDEEP 12288:KMrny90eFeSD9i3YJTUs2Wug+4+wS7EFut60WtNV/c7FZ:VyrFeSDM3YRz2WuHUSooI043qZ
MD5 SHA1 SHA512 SSDEEP

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An6Ot68.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\An6Ot68.exe
Size 389KB
SHA256 54a5228a0ab6d4fbd1825722392acf2ba3386106069d377ff2c9f6441cabed6f
MD5 783c691a3a26262a0de8305536ce56e6
SHA1 2f5d2cb6efee6b08cc7dd7a99e6b04e8b399080d
SHA512 b3579c6ba112b8d729174182744636d68a9fd9ebdd40294c187b6226cb53b70e8615398272416bde52822b45de4a94934283e380289694650da90a77237a3900
SSDEEP 12288:KMrny90eFeSD9i3YJTUs2Wug+4+wS7EFut60WtNV/c7FZ:VyrFeSDM3YRz2WuHUSooI043qZ
MD5 SHA1 SHA512 SSDEEP

Submit Download

1tX82gf4.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1tX82gf4.exe
Size 300KB
SHA256 1025fb084bca865df30e69eea7a9a4a3c852626e148b340de661e6f5b63bc1c9
MD5 784667bb96ccb30c4cf44f2c5f493769
SHA1 28185165ab4dbbb4a139ae1af0bb6934ebe05c04
SHA512 62c9def097f132cdb26b11e586f3e15407b9eb9e9e32f79460a3be1bd4c8e046db8488f754cd1c1cc4fe4025a3f9bc9484e94eae0c7d273050f8e6548d12bc20
SSDEEP 6144:2Y7w4esWRaIsFwQpsUM0EIsZTY+GhH7gaWQ3org/pz:2Y7w4eOFQRVhFi70rg/pz
MD5 SHA1 SHA512 SSDEEP

Submit Download

1tX82gf4.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1tX82gf4.exe
Size 300KB
SHA256 1025fb084bca865df30e69eea7a9a4a3c852626e148b340de661e6f5b63bc1c9
MD5 784667bb96ccb30c4cf44f2c5f493769
SHA1 28185165ab4dbbb4a139ae1af0bb6934ebe05c04
SHA512 62c9def097f132cdb26b11e586f3e15407b9eb9e9e32f79460a3be1bd4c8e046db8488f754cd1c1cc4fe4025a3f9bc9484e94eae0c7d273050f8e6548d12bc20
SSDEEP 6144:2Y7w4esWRaIsFwQpsUM0EIsZTY+GhH7gaWQ3org/pz:2Y7w4eOFQRVhFi70rg/pz
MD5 SHA1 SHA512 SSDEEP

Submit Download

2qJ2521.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2qJ2521.exe
Size 339KB
SHA256 e6e9b3d830f2d7860a09d596576e8ab0131c527b47dda73fe727b71b44c8cf60
MD5 14d9834611ad581afcfea061652ff6cb
SHA1 802f964d0be7858eb2f1e7c6fcda03501fd1b71c
SHA512 cbef1f44eb76d719c60d857a567a3fc700d62751111337cd4f8d30deae6901dc361320f28dac5ec5468420419eed66cada20f4c90fe07db6a3f8cf959eba31b5
SSDEEP 6144:0Gj04eA5qag/twYGi1AgAvoJqu4oAFQtEN2Vorg/pz:0Gj04eVCtvoJqu8FQGN2Wrg/pz
MD5 SHA1 SHA512 SSDEEP

Submit Download

2qJ2521.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2qJ2521.exe
Size 339KB
SHA256 e6e9b3d830f2d7860a09d596576e8ab0131c527b47dda73fe727b71b44c8cf60
MD5 14d9834611ad581afcfea061652ff6cb
SHA1 802f964d0be7858eb2f1e7c6fcda03501fd1b71c
SHA512 cbef1f44eb76d719c60d857a567a3fc700d62751111337cd4f8d30deae6901dc361320f28dac5ec5468420419eed66cada20f4c90fe07db6a3f8cf959eba31b5
SSDEEP 6144:0Gj04eA5qag/twYGi1AgAvoJqu4oAFQtEN2Vorg/pz:0Gj04eVCtvoJqu8FQGN2Wrg/pz
MD5 SHA1 SHA512 SSDEEP

Submit Download

is64.bat

Path C:\Users\Admin\AppData\Local\Temp\is64.bat
Size 181B
SHA256 e1befb57d724c9dc760cf42d7e0609212b22faeb2dc0c3ffe2fbd7134ff69559
MD5 225edee1d46e0a80610db26b275d72fb
SHA1 ce206abf11aaf19278b72f5021cc64b1b427b7e8
SHA512 4f01a2a248a1322cb690b7395b818d2780e46f4884e59f1ab96125d642b6358eea97c7fad6023ef17209b218daa9c88d15ea2b92f124ecb8434c0c7b4a710504
MD5 SHA1 SHA512

Submit Download

is64.txt

Path C:\Users\Admin\AppData\Local\Temp\is64.txt
Size 3B
SHA256 f1b2f662800122bed0ff255693df89c4487fbdcf453d3524a42d4ec20c3d9c04
MD5 a5ea0ad9260b1550a14cc58d2c39b03d
SHA1 f0aedf295071ed34ab8c6a7692223d22b6a19841
SHA512 7c735c613ece191801114785c1ee26a0485cbf1e8ee2c3b85ba1ad290ef75eec9fede5e1a5dc26d504701f3542e6b6457818f4c1d62448d0db40d5f35c357d74
MD5 SHA1 SHA512

Submit Download

memory/388-28-0x0000000073F60000-0x0000000074710000-memory.dmp

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memory/388-38-0x00000000076A0000-0x00000000076AA000-memory.dmp

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memory/388-45-0x0000000007700000-0x0000000007710000-memory.dmp

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memory/388-44-0x0000000073F60000-0x0000000074710000-memory.dmp

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memory/388-30-0x0000000007A80000-0x0000000008024000-memory.dmp

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memory/388-32-0x00000000075B0000-0x0000000007642000-memory.dmp

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memory/388-34-0x0000000007700000-0x0000000007710000-memory.dmp

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memory/388-22-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/388-43-0x0000000007920000-0x000000000796C000-memory.dmp

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memory/388-39-0x0000000008650000-0x0000000008C68000-memory.dmp

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memory/388-42-0x00000000078E0000-0x000000000791C000-memory.dmp

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memory/388-40-0x0000000008030000-0x000000000813A000-memory.dmp

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memory/388-41-0x0000000007870000-0x0000000007882000-memory.dmp

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memory/4388-14-0x0000000000400000-0x0000000000433000-memory.dmp

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memory/4388-16-0x0000000000400000-0x0000000000433000-memory.dmp

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memory/4388-18-0x0000000000400000-0x0000000000433000-memory.dmp

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memory/4388-15-0x0000000000400000-0x0000000000433000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads