mystic | f8ef4d4677aa86895d48bc1fc4e3955db7e59c93107e5588ed39edac25435826

General

Target

f8ef4d4677aa86895d48bc1fc4e3955db7e59c93107e5588ed39edac25435826N.exe
Size

821KB
MD5

d041772bcb0d99fcb2920e2fc68a8b80
SHA1

25c01049e5b270365058834d5cb0d4946bcccc11
SHA256

f8ef4d4677aa86895d48bc1fc4e3955db7e59c93107e5588ed39edac25435826
SHA512

f2356b7edac1969fa292d4cad18a5355acc67dcc7347745ff83eae19595cad883b5d41e84e977768a5627657b0d4ce48170e7afb2f22dce44a0c18b595122601
SSDEEP

12288:JMrsy905ZMxOCAA2uXf6omB8sMyyNnrr2sfxpaNdtyDmzj99Z4b1/+ARQN:FymZ7CAEdeImwaADujq/HU

Score

10^/10

mystic redline gigant discovery infostealer persistence stealer

Malware Config

Extracted

Family

redline

Botnet

gigant

C2

77.91.124.55:19071

Signatures

Detect Mystic stealer payload 4 IoCs

resource	yara_rule
behavioral1/memory/1140-14-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family
behavioral1/memory/1140-16-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family
behavioral1/memory/1140-15-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family
behavioral1/memory/1140-18-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family

Mystic
Mystic is an infostealer written in C++.
stealer mystic
Mystic family
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
behavioral1/files/0x0007000000023c9e-20.dat	family_redline
behavioral1/memory/2348-22-0x00000000005B0000-0x00000000005EE000-memory.dmp	family_redline

Redline family
redline

Executes dropped EXE 3 IoCs

pid	Process
4000	iz6Kx7MP.exe
876	1Ft39Fy6.exe
2348	2oe365ml.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\\\""	f8ef4d4677aa86895d48bc1fc4e3955db7e59c93107e5588ed39edac25435826N.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\\\""	iz6Kx7MP.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 876 set thread context of 1140	876	1Ft39Fy6.exe	87

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4476	1140	WerFault.exe	87
4896	876	WerFault.exe	85

System Location Discovery: System Language Discovery 1 TTPs 5 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	AppLaunch.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2oe365ml.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f8ef4d4677aa86895d48bc1fc4e3955db7e59c93107e5588ed39edac25435826N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iz6Kx7MP.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1Ft39Fy6.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 728 wrote to memory of 4000	728	f8ef4d4677aa86895d48bc1fc4e3955db7e59c93107e5588ed39edac25435826N.exe	84
PID 728 wrote to memory of 4000	728	f8ef4d4677aa86895d48bc1fc4e3955db7e59c93107e5588ed39edac25435826N.exe	84
PID 728 wrote to memory of 4000	728	f8ef4d4677aa86895d48bc1fc4e3955db7e59c93107e5588ed39edac25435826N.exe	84
PID 4000 wrote to memory of 876	4000	iz6Kx7MP.exe	85
PID 4000 wrote to memory of 876	4000	iz6Kx7MP.exe	85
PID 4000 wrote to memory of 876	4000	iz6Kx7MP.exe	85
PID 876 wrote to memory of 1140	876	1Ft39Fy6.exe	87
PID 876 wrote to memory of 1140	876	1Ft39Fy6.exe	87
PID 876 wrote to memory of 1140	876	1Ft39Fy6.exe	87
PID 876 wrote to memory of 1140	876	1Ft39Fy6.exe	87
PID 876 wrote to memory of 1140	876	1Ft39Fy6.exe	87
PID 876 wrote to memory of 1140	876	1Ft39Fy6.exe	87
PID 876 wrote to memory of 1140	876	1Ft39Fy6.exe	87
PID 876 wrote to memory of 1140	876	1Ft39Fy6.exe	87
PID 876 wrote to memory of 1140	876	1Ft39Fy6.exe	87
PID 876 wrote to memory of 1140	876	1Ft39Fy6.exe	87
PID 4000 wrote to memory of 2348	4000	iz6Kx7MP.exe	95
PID 4000 wrote to memory of 2348	4000	iz6Kx7MP.exe	95
PID 4000 wrote to memory of 2348	4000	iz6Kx7MP.exe	95

C:\Users\Admin\AppData\Local\Temp\f8ef4d4677aa86895d48bc1fc4e3955db7e59c93107e5588ed39edac25435826N.exe
"C:\Users\Admin\AppData\Local\Temp\f8ef4d4677aa86895d48bc1fc4e3955db7e59c93107e5588ed39edac25435826N.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:728
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\iz6Kx7MP.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\iz6Kx7MP.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4000
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Ft39Fy6.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Ft39Fy6.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:876
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      System Location Discovery: System Language Discovery
      PID:1140
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1140 -s 540
        5⤵
        Program crash
        
        PID:4476
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 876 -s 580
      4⤵
      Program crash
      PID:4896
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2oe365ml.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2oe365ml.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2348

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 876 -ip 876
1⤵
PID:4736

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1140 -ip 1140
1⤵
PID:3512

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

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\IXP000.TMP\iz6Kx7MP.exe

Filesize
649KB

MD5
64f56891866a12c4bcd501923df63fa1

SHA1
fe9f13754c498cc8b2f8ee6d6ce4e3d7bd640116

SHA256
63a0f263294087701b5f1703a91ae6e96a929bb4bb33e0f5384d6e4e88194f94

SHA512
3f3fbaffb798512638fe3c74d8180af204ace37000167d362a08e4e8a61b44ba3bf224cbe9fda25e16053ebaaa114f588ad964e6f5c821281c2a7ac89451bca4

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Ft39Fy6.exe

Filesize
1.7MB

MD5
144dc3c0a5275a93ff86f00b5c61b9ec

SHA1
784168ab3c4711737656ca13dc4cb59ca267fa45

SHA256
179649325e561f83a53c5cba99cd8f1f589064c8d0f2029fb8e06f61ae986787

SHA512
9af6a9870077621eb046d6fed0fac88eba35edd4cd5e60f49c46018ab633d5cc77ddb9a93886178544198099a4e3b20726a32729ec9d1cf89524b4a579afb783

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2oe365ml.exe

Filesize
231KB

MD5
bff287305ff9109fdbdd423dd114e70a

SHA1
79530fa7a89daa1f1f3b709b1d55a9debfa47855

SHA256
aa97dc294e8415b6123770299c2080409660b804c17d437c7ef345dacace1b9f

SHA512
c1a8d8ae480d974a737d1db3d51f1f409484808cf2074fc7e46372f33beb42da9160756cf15283c5d0acfed81dddbf19130639d62607d746b27bc63610811ab2

Download Submit
memory/1140-14-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1140-16-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1140-15-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1140-18-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2348-23-0x0000000007890000-0x0000000007E34000-memory.dmp

Filesize
5.6MB

Download
memory/2348-22-0x00000000005B0000-0x00000000005EE000-memory.dmp

Filesize
248KB

Download
memory/2348-24-0x0000000007380000-0x0000000007412000-memory.dmp

Filesize
584KB

Download
memory/2348-25-0x0000000004930000-0x000000000493A000-memory.dmp

Filesize
40KB

Download
memory/2348-26-0x0000000008460000-0x0000000008A78000-memory.dmp

Filesize
6.1MB

Download
memory/2348-27-0x0000000007640000-0x000000000774A000-memory.dmp

Filesize
1.0MB

Download
memory/2348-28-0x0000000007570000-0x0000000007582000-memory.dmp

Filesize
72KB

Download
memory/2348-29-0x00000000075D0000-0x000000000760C000-memory.dmp

Filesize
240KB

Download
memory/2348-30-0x0000000007750000-0x000000000779C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads