redline | 37617e571066d7e620392e8be59f962ae9c20dade410e7291b345bf669b0c59d

General

Target

GeneralAttachment.exe
Size

577KB
MD5

f84c0765285cfa761e31bfa7f5f2b878
SHA1

5ef22c3d8dc871cb6a7b1c786db00ab558c64a97
SHA256

37617e571066d7e620392e8be59f962ae9c20dade410e7291b345bf669b0c59d
SHA512

7475d3467ecc6e5ca8597cfc797a9d52de808d9f4ca6e8645ec561336300c0843266cad33db5dd54e01bbbece0fbd7d090ed6b06a7b176c295ff26fc6ee7f827
SSDEEP

12288:34awZIJA5PDeLQM7SEUdnX+z3eSvDBKFtI0JrxwS:ygkDT2wnXQ7F0dxd

Score

10^/10

redline snakekeylogger stormkitty collection infostealer keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol: smtp
Host:
argona.ro
Port:
26
Username:
[email protected]
Password:
Argona12!@
Email To:
[email protected]

Signatures

Detects Redline Stealer samples 2 IoCs

This rule detects the presence of Redline Stealer samples based on their unique strings.

stealer

resource	yara_rule
behavioral2/memory/3916-148-0x00000000055C0000-0x0000000005BE8000-memory.dmp	redline_stealer
behavioral2/memory/3916-155-0x0000000005250000-0x00000000052B6000-memory.dmp	redline_stealer

RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
infostealer redline
Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
stealer keylogger snakekeylogger

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/4648-147-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty payload 1 IoCs

resource	yara_rule
behavioral2/memory/4648-147-0x0000000000400000-0x0000000000426000-memory.dmp	family_stormkitty

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-1-5-21-4238149048-355649189-894321705-1000\Control Panel\International\Geo\Nation	GeneralAttachment.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	GeneralAttachment.exe
Key opened	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	GeneralAttachment.exe
Key opened	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	GeneralAttachment.exe

Looks up external IP address via web service 1 IoCs

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

flow	ioc
34	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3596 set thread context of 4648	3596	GeneralAttachment.exe	94

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
2360	schtasks.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
3596	GeneralAttachment.exe
3596	GeneralAttachment.exe
3596	GeneralAttachment.exe
3596	GeneralAttachment.exe
3596	GeneralAttachment.exe
3596	GeneralAttachment.exe
3596	GeneralAttachment.exe
3596	GeneralAttachment.exe
4648	GeneralAttachment.exe
3916	powershell.exe
3916	powershell.exe
4648	GeneralAttachment.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3596	GeneralAttachment.exe
Token: SeDebugPrivilege	4648	GeneralAttachment.exe
Token: SeDebugPrivilege	3916	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3596 wrote to memory of 3916	3596	GeneralAttachment.exe	90
PID 3596 wrote to memory of 3916	3596	GeneralAttachment.exe	90
PID 3596 wrote to memory of 3916	3596	GeneralAttachment.exe	90
PID 3596 wrote to memory of 2360	3596	GeneralAttachment.exe	92
PID 3596 wrote to memory of 2360	3596	GeneralAttachment.exe	92
PID 3596 wrote to memory of 2360	3596	GeneralAttachment.exe	92
PID 3596 wrote to memory of 4648	3596	GeneralAttachment.exe	94
PID 3596 wrote to memory of 4648	3596	GeneralAttachment.exe	94
PID 3596 wrote to memory of 4648	3596	GeneralAttachment.exe	94
PID 3596 wrote to memory of 4648	3596	GeneralAttachment.exe	94
PID 3596 wrote to memory of 4648	3596	GeneralAttachment.exe	94
PID 3596 wrote to memory of 4648	3596	GeneralAttachment.exe	94
PID 3596 wrote to memory of 4648	3596	GeneralAttachment.exe	94
PID 3596 wrote to memory of 4648	3596	GeneralAttachment.exe	94

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	GeneralAttachment.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	GeneralAttachment.exe

C:\Users\Admin\AppData\Local\Temp\GeneralAttachment.exe
"C:\Users\Admin\AppData\Local\Temp\GeneralAttachment.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3596
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\cvltQgKHOkpV.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3916
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\cvltQgKHOkpV" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFE07.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2360
- C:\Users\Admin\AppData\Local\Temp\GeneralAttachment.exe
  "C:\Users\Admin\AppData\Local\Temp\GeneralAttachment.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4648

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\GeneralAttachment.exe.log

Filesize
1KB

MD5
33d62ef2c354f839a8b2b987e6ee41e7

SHA1
d76f64ac411a61f3f232f7f9f7b179bd34042226

SHA256
f6a84062cb11ccf802324692c2c4c48543377cf717d98efd5de695ed6d0a97d9

SHA512
d68a426b2f4646bb45e2267d60680166a8effb9a461e5a07756ba13a3bdf36b27e6e9777d945d03a62362e6976e92214c53ffc7c4f03ec28d3fcfc9a442c5e3c

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_si1xxoaw.ya4.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpFE07.tmp

Filesize
1KB

MD5
c56ff96b3a1c19100844cee9a89d3af6

SHA1
f7d9bd8f255fc7bfa17185c16a33ffc235d57630

SHA256
e3f0b8d947c74f7a3d8bd5214363d1d92fbe8004e5d3518168ebab5a3b982a4b

SHA512
5f0bd1f8280f4af2fdc01346ad2d5aeb7b6eb3589c868bcbb6240972275c6d6665d8da038892ec90ae22c0eff779ef93cc128e0facccbc6c0fcb798fb34f369d

Download Submit
memory/3596-134-0x00000000053E0000-0x0000000005984000-memory.dmp

Filesize
5.6MB

Download
memory/3596-135-0x0000000004D20000-0x0000000004DB2000-memory.dmp

Filesize
584KB

Download
memory/3596-136-0x0000000004F50000-0x0000000004F60000-memory.dmp

Filesize
64KB

Download
memory/3596-137-0x0000000004DD0000-0x0000000004DDA000-memory.dmp

Filesize
40KB

Download
memory/3596-138-0x0000000004F50000-0x0000000004F60000-memory.dmp

Filesize
64KB

Download
memory/3596-139-0x0000000006290000-0x000000000632C000-memory.dmp

Filesize
624KB

Download
memory/3596-133-0x0000000000300000-0x0000000000396000-memory.dmp

Filesize
600KB

Download
memory/3916-154-0x00000000051E0000-0x0000000005246000-memory.dmp

Filesize
408KB

Download
memory/3916-167-0x0000000002C30000-0x0000000002C40000-memory.dmp

Filesize
64KB

Download
memory/3916-148-0x00000000055C0000-0x0000000005BE8000-memory.dmp

Filesize
6.2MB

Download
memory/3916-150-0x0000000002C30000-0x0000000002C40000-memory.dmp

Filesize
64KB

Download
memory/3916-188-0x00000000077B0000-0x00000000077B8000-memory.dmp

Filesize
32KB

Download
memory/3916-153-0x0000000005140000-0x0000000005162000-memory.dmp

Filesize
136KB

Download
memory/3916-145-0x0000000001030000-0x0000000001066000-memory.dmp

Filesize
216KB

Download
memory/3916-155-0x0000000005250000-0x00000000052B6000-memory.dmp

Filesize
408KB

Download
memory/3916-144-0x0000000002C30000-0x0000000002C40000-memory.dmp

Filesize
64KB

Download
memory/3916-165-0x0000000006100000-0x000000000611E000-memory.dmp

Filesize
120KB

Download
memory/3916-166-0x0000000002C30000-0x0000000002C40000-memory.dmp

Filesize
64KB

Download
memory/3916-187-0x00000000077D0000-0x00000000077EA000-memory.dmp

Filesize
104KB

Download
memory/3916-168-0x0000000002C30000-0x0000000002C40000-memory.dmp

Filesize
64KB

Download
memory/3916-169-0x00000000066C0000-0x00000000066F2000-memory.dmp

Filesize
200KB

Download
memory/3916-170-0x00000000700E0000-0x000000007012C000-memory.dmp

Filesize
304KB

Download
memory/3916-180-0x00000000066A0000-0x00000000066BE000-memory.dmp

Filesize
120KB

Download
memory/3916-186-0x00000000076C0000-0x00000000076CE000-memory.dmp

Filesize
56KB

Download
memory/3916-182-0x0000000007AD0000-0x000000000814A000-memory.dmp

Filesize
6.5MB

Download
memory/3916-183-0x0000000007490000-0x00000000074AA000-memory.dmp

Filesize
104KB

Download
memory/3916-184-0x0000000007500000-0x000000000750A000-memory.dmp

Filesize
40KB

Download
memory/3916-185-0x0000000007710000-0x00000000077A6000-memory.dmp

Filesize
600KB

Download
memory/4648-181-0x0000000004DA0000-0x0000000004DB0000-memory.dmp

Filesize
64KB

Download
memory/4648-147-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4648-152-0x0000000004DA0000-0x0000000004DB0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads