redline | c322a19f7b453ed4b9b03817eedc08e88cd8858fd19de799da20603b2d8f5b90

General

Target

Lucky SkinChanger.exe
Size

2.1MB
MD5

795a68d97113af5bfe54e3b0250ee2d4
SHA1

65d1bd69f7fb761ffe0831548b41af9d107692db
SHA256

1800e21eac1384cd70ce9edc4b58301eb632eb01489481034a3cd292314dc9ff
SHA512

b87ecd159a781b83fb1e59c6e2aa372f364047832081920c2f8cb1699793536066b5e9150ec447dc280540bb5032aca5da0a1302892d561820009f95ae747990
SSDEEP

49152:RL1bLMB4ZrlZ/TZGvyAmbJKHo54cl8LH+tkWJ0X4:PLFZz/taAEjcmHgkWJ0X

Score

10^/10

redline sectoprat sapphire discovery infostealer rat spyware stealer trojan

Malware Config

Extracted

Family

redline

Botnet

sapphire

C2

185.230.143.237:2548

Signatures

RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
infostealer redline
Redline family
redline
SectopRAT
SectopRAT is a remote access trojan first seen in November 2019.
trojan rat sectoprat

SectopRAT payload 2 IoCs

resource	yara_rule
behavioral2/memory/4544-32-0x00000000002E0000-0x0000000000664000-memory.dmp	family_sectoprat
behavioral2/memory/4544-33-0x00000000002E0000-0x0000000000664000-memory.dmp	family_sectoprat

Sectoprat family
sectoprat

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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	Lucky SkinChanger.exe

Executes dropped EXE 1 IoCs

pid	Process
4544	Decoder.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
6	api.ipify.org
11	ip-api.com
3	api.ipify.org

Suspicious use of NtSetInformationThreadHideFromDebugger 16 IoCs

pid	Process
4544	Decoder.exe
4544	Decoder.exe
4544	Decoder.exe
4544	Decoder.exe
4544	Decoder.exe
4544	Decoder.exe
4544	Decoder.exe
4544	Decoder.exe
4544	Decoder.exe
4544	Decoder.exe
4544	Decoder.exe
4544	Decoder.exe
4544	Decoder.exe
4544	Decoder.exe
4544	Decoder.exe
4544	Decoder.exe

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
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 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	Decoder.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3808	timeout.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1652	Lucky SkinChanger.exe
1652	Lucky SkinChanger.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1652	Lucky SkinChanger.exe
Token: SeDebugPrivilege	4544	Decoder.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4544	Decoder.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1652 wrote to memory of 4544	1652	Lucky SkinChanger.exe	87
PID 1652 wrote to memory of 4544	1652	Lucky SkinChanger.exe	87
PID 1652 wrote to memory of 4544	1652	Lucky SkinChanger.exe	87
PID 1652 wrote to memory of 2012	1652	Lucky SkinChanger.exe	88
PID 1652 wrote to memory of 2012	1652	Lucky SkinChanger.exe	88
PID 2012 wrote to memory of 3808	2012	cmd.exe	91
PID 2012 wrote to memory of 3808	2012	cmd.exe	91

C:\Users\Admin\AppData\Local\Temp\Lucky SkinChanger.exe
"C:\Users\Admin\AppData\Local\Temp\Lucky SkinChanger.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1652
- C:\ProgramData\Decoder.exe
  "C:\ProgramData\Decoder.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4544
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\.cmd""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2012
- - C:\Windows\system32\timeout.exe
    timeout 4
    3⤵
    - Delays execution with timeout.exe
    PID:3808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Browser Information Discovery

Query Registry

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\Decoder.exe

Filesize
1.1MB

MD5
50b223696961a46e3f435c226b12f899

SHA1
f7e909e182969bdb44c3ed8c2c091967c54c7957

SHA256
658c50b49af49975e3a4bc1fa44337bb72dcf86b49dee68b2fa6e6dd353309b5

SHA512
b19377b68de8d62f5bc85bc523e22b98665a163a3553ba1acafdf068957a123877118698628034c0062c1370ea012c2bbf30175f06ada2e3d5181ad6233d8c36

Download Submit
C:\Users\Admin\AppData\Local\JRDPBVFyTDJuTXuT16ECD12066\6616ECD120JRDPBVFyTDJuTXuT\Browsers\Passwords\Passwords_Edge.txt

Filesize
426B

MD5
42fa959509b3ed7c94c0cf3728b03f6d

SHA1
661292176640beb0b38dc9e7a462518eb592d27d

SHA256
870ef3d2370932a8938faa60abd47d75ea0af98bfa11c82ae8efe9e94fd8be00

SHA512
7def291737d081c93d0cc38ac8d3062fd34d93b68d191eb0d54e9857e0c0afdbcd241471a2e10c28ce8db3b1d1ae0dba2ef6f609cfe8a1e8fe1dd103dba80007

Download Submit
C:\Users\Admin\AppData\Local\JRDPBVFyTDJuTXuT16ECD12066\6616ECD120JRDPBVFyTDJuTXuT\Grabber\CompressExit.doc

Filesize
680KB

MD5
04d268000f3629824f5f04572a08f111

SHA1
d0ada080b2e157124f459d1d2fdb051a143f84b0

SHA256
f4836d88fc383571088c60534d4348bb2bab847139781b6343fe665a24487b15

SHA512
fba0be35cfc7abb2fbd9c4238bee5ee4829ad3b3ba01326b61bbd1dc02255109b8caacf21f623def887a07139e3fc04dca9120f2611245163f6f32db069bb08a

Download Submit
C:\Users\Admin\AppData\Local\JRDPBVFyTDJuTXuT16ECD12066\6616ECD120JRDPBVFyTDJuTXuT\Grabber\InstallReceive.rar

Filesize
664KB

MD5
cf4ddb2aef5968e028e3cdf3b0bddb2a

SHA1
99aa77ac727b669ba0466eaada40daa5ddd6be6c

SHA256
a0889f0ccb719fbfd1303f55e846f54356a836047ed6854974b83312e2a58089

SHA512
bfaa14ec27c6d6576207305eb726ddfaae6e21f2620834da5c6ff49458378f867ac8e7b4758d4bec5c11c570da82855cb1ac9ae46a2173dd4b1777d9feae66b3

Download Submit
C:\Users\Admin\AppData\Local\JRDPBVFyTDJuTXuT16ECD12066\6616ECD120JRDPBVFyTDJuTXuT\Grabber\RenameBackup.txt

Filesize
234KB

MD5
13d840578b916132446d18a383e01944

SHA1
506135cdc356058b3c914bdee1685b07405df97e

SHA256
57cdb9e92ce282f4f757ca0d4cd3119a19b4ac4c1664d1bd4b3f5dcc59fc64c2

SHA512
b99133e81ddab461cece1562661cc980650b666a30d98c0f2be7fe9134199f6837684f8b629875444286a6b00fa05872f765ef06133c2b39744f042fd10107f8

Download Submit
C:\Users\Admin\AppData\Local\Temp\.cmd

Filesize
85B

MD5
73712247036b6a24d16502c57a3e5679

SHA1
65ca9edadb0773fc34db7dfefe9e6416f1ac17fa

SHA256
8bd49d7e7e6b2c2dc16a4cb0eebb8f28892775fad56c9e4aaa22d59f01883cd0

SHA512
548eef10b0118f7d907fa19c12de68b47278afffb3eb9460621efb2b711ebcf6b90d0ea1c077fc480e032bf241fb3f8cc995ec1373e301446f89f1a74a6309de

Download Submit
memory/1652-3-0x00007FFD8F050000-0x00007FFD8FB11000-memory.dmp

Filesize
10.8MB

Download
memory/1652-114-0x00007FFD8F050000-0x00007FFD8FB11000-memory.dmp

Filesize
10.8MB

Download
memory/1652-1-0x000001E37A280000-0x000001E37A4AA000-memory.dmp

Filesize
2.2MB

Download
memory/1652-2-0x000001E37CA70000-0x000001E37CAE6000-memory.dmp

Filesize
472KB

Download
memory/1652-0-0x00007FFD8F053000-0x00007FFD8F055000-memory.dmp

Filesize
8KB

Download
memory/4544-41-0x0000000005E30000-0x0000000006448000-memory.dmp

Filesize
6.1MB

Download
memory/4544-46-0x0000000005780000-0x00000000057BC000-memory.dmp

Filesize
240KB

Download
memory/4544-19-0x00000000002E0000-0x0000000000664000-memory.dmp

Filesize
3.5MB

Download
memory/4544-65-0x0000000005810000-0x000000000585C000-memory.dmp

Filesize
304KB

Download
memory/4544-66-0x00000000746E0000-0x0000000074E90000-memory.dmp

Filesize
7.7MB

Download
memory/4544-71-0x0000000005A20000-0x0000000005B2A000-memory.dmp

Filesize
1.0MB

Download
memory/4544-42-0x0000000005720000-0x0000000005732000-memory.dmp

Filesize
72KB

Download
memory/4544-33-0x00000000002E0000-0x0000000000664000-memory.dmp

Filesize
3.5MB

Download
memory/4544-32-0x00000000002E0000-0x0000000000664000-memory.dmp

Filesize
3.5MB

Download
memory/4544-31-0x00000000746EE000-0x00000000746EF000-memory.dmp

Filesize
4KB

Download
memory/4544-115-0x00000000002E0000-0x0000000000664000-memory.dmp

Filesize
3.5MB

Download
memory/4544-117-0x00000000746EE000-0x00000000746EF000-memory.dmp

Filesize
4KB

Download
memory/4544-118-0x00000000746E0000-0x0000000074E90000-memory.dmp

Filesize
7.7MB

Download

Analysis

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