redline | aaaff084052e3062d911bf5859a4a6bafdf09b5dc2fe8c201ed932ef9b8c92a2

General

Target

$O00l1ArAi1nstaller.zip
Size

331KB
MD5

e5685d7badcd511b3847631402de6143
SHA1

088b2ee9859eec98eae62483a459248ec60f947d
SHA256

aaaff084052e3062d911bf5859a4a6bafdf09b5dc2fe8c201ed932ef9b8c92a2
SHA512

1e3a9792954f23c1e63cdaab42128e4714911f8a06f6669e10bce8e2fd6f38c561b7d3205486ec2c517f45b9d5dbc4372c311875706a80dfaa4e32d5b5059859
SSDEEP

6144:8yxRrFZp/PeqsuEJefOqsCSfz8dP3x/S1F294bnojHUOGtz+vp4WU:8yXrp/7sBcfwXo5Hizozuti5U

Score

10^/10

redline discovery infostealer

Malware Config

Extracted

Family

redline

C2

185.196.9.26:6302

Signatures

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

RedLine payload 1 IoCs

resource	yara_rule
behavioral2/memory/4488-22-0x0000000000400000-0x0000000000452000-memory.dmp	family_redline

Redline family
redline

Executes dropped EXE 2 IoCs

pid	Process
4292	$O00l1ArAi1nstaller.exe
1068	$O00l1ArAi1nstaller.exe

Loads dropped DLL 2 IoCs

pid	Process
4292	$O00l1ArAi1nstaller.exe
1068	$O00l1ArAi1nstaller.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4292 set thread context of 4488	4292	$O00l1ArAi1nstaller.exe	106
PID 1068 set thread context of 3356	1068	$O00l1ArAi1nstaller.exe	109

System Location Discovery: System Language Discovery 1 TTPs 4 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	$O00l1ArAi1nstaller.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	$O00l1ArAi1nstaller.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
5056	7zFM.exe
5056	7zFM.exe
5056	7zFM.exe
5056	7zFM.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
5056	7zFM.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeRestorePrivilege	5056	7zFM.exe
Token: 35	5056	7zFM.exe
Token: SeSecurityPrivilege	5056	7zFM.exe
Token: SeSecurityPrivilege	5056	7zFM.exe
Token: SeSecurityPrivilege	5056	7zFM.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
5056	7zFM.exe
5056	7zFM.exe
5056	7zFM.exe
5056	7zFM.exe
5056	7zFM.exe
5056	7zFM.exe
5056	7zFM.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 5056 wrote to memory of 4292	5056	7zFM.exe	102
PID 5056 wrote to memory of 4292	5056	7zFM.exe	102
PID 5056 wrote to memory of 4292	5056	7zFM.exe	102
PID 4292 wrote to memory of 4488	4292	$O00l1ArAi1nstaller.exe	106
PID 4292 wrote to memory of 4488	4292	$O00l1ArAi1nstaller.exe	106
PID 4292 wrote to memory of 4488	4292	$O00l1ArAi1nstaller.exe	106
PID 4292 wrote to memory of 4488	4292	$O00l1ArAi1nstaller.exe	106
PID 4292 wrote to memory of 4488	4292	$O00l1ArAi1nstaller.exe	106
PID 4292 wrote to memory of 4488	4292	$O00l1ArAi1nstaller.exe	106
PID 4292 wrote to memory of 4488	4292	$O00l1ArAi1nstaller.exe	106
PID 4292 wrote to memory of 4488	4292	$O00l1ArAi1nstaller.exe	106
PID 5056 wrote to memory of 1068	5056	7zFM.exe	107
PID 5056 wrote to memory of 1068	5056	7zFM.exe	107
PID 5056 wrote to memory of 1068	5056	7zFM.exe	107
PID 1068 wrote to memory of 3356	1068	$O00l1ArAi1nstaller.exe	109
PID 1068 wrote to memory of 3356	1068	$O00l1ArAi1nstaller.exe	109
PID 1068 wrote to memory of 3356	1068	$O00l1ArAi1nstaller.exe	109
PID 1068 wrote to memory of 3356	1068	$O00l1ArAi1nstaller.exe	109
PID 1068 wrote to memory of 3356	1068	$O00l1ArAi1nstaller.exe	109
PID 1068 wrote to memory of 3356	1068	$O00l1ArAi1nstaller.exe	109
PID 1068 wrote to memory of 3356	1068	$O00l1ArAi1nstaller.exe	109
PID 1068 wrote to memory of 3356	1068	$O00l1ArAi1nstaller.exe	109

C:\Program Files\7-Zip\7zFM.exe
"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\$O00l1ArAi1nstaller.zip"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:5056
- C:\Users\Admin\AppData\Local\Temp\7zO0C3EAD48\$O00l1ArAi1nstaller.exe
  "C:\Users\Admin\AppData\Local\Temp\7zO0C3EAD48\$O00l1ArAi1nstaller.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4292
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4488
- C:\Users\Admin\AppData\Local\Temp\7zO0C3751F8\$O00l1ArAi1nstaller.exe
  "C:\Users\Admin\AppData\Local\Temp\7zO0C3751F8\$O00l1ArAi1nstaller.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1068
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3356

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:4708

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\Microsoft\CLR_v4.0_32\UsageLogs\$O00l1ArAi1nstaller.exe.log

Filesize
42B

MD5
84cfdb4b995b1dbf543b26b86c863adc

SHA1
d2f47764908bf30036cf8248b9ff5541e2711fa2

SHA256
d8988d672d6915b46946b28c06ad8066c50041f6152a91d37ffa5cf129cc146b

SHA512
485f0ed45e13f00a93762cbf15b4b8f996553baa021152fae5aba051e3736bcd3ca8f4328f0e6d9e3e1f910c96c4a9ae055331123ee08e3c2ce3a99ac2e177ce

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zO0C3EAD48\$O00l1ArAi1nstaller.exe

Filesize
384KB

MD5
51e03c02d99ef6ebbf99a129dafce711

SHA1
bb8267b0677884a2681687f1a5e60fa35194ac06

SHA256
03cbedf30b8339311d32d8df4895d36030b9f1f7917beba54b47d716674467c1

SHA512
7623101de16700802f269ad15e18be069b9711b5f25ad0672083c707e487bad3fd288c364e2220c567d9104bfa32416b11aa88e46c4b565efde4ba1b4b0a3124

Download Submit
C:\Users\Admin\AppData\Roaming\msvcp110.dll

Filesize
570KB

MD5
5401467483efc8330d66e4fe98f03cc8

SHA1
6f0e567a34e8bef55d46edf1f5982d71bd92b481

SHA256
f4341d1dc746b79c91ba341455bdaff7cc32cc75292d0fcd9f3f7eed01a3bda7

SHA512
67ef910b8fc0a0a05f3c00ad8c3db4fb60e00423747d80115f91fd01cf17b9101ef84b790c06aea4dc25a44163d5d70c4030177b00c2b576d46f8bdcf0167472

Download Submit
memory/4292-12-0x0000000074F2E000-0x0000000074F2F000-memory.dmp

Filesize
4KB

Download
memory/4292-13-0x0000000000010000-0x0000000000078000-memory.dmp

Filesize
416KB

Download
memory/4292-14-0x0000000002320000-0x0000000002326000-memory.dmp

Filesize
24KB

Download
memory/4292-21-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/4292-46-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/4292-24-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/4488-25-0x0000000005530000-0x0000000005AD4000-memory.dmp

Filesize
5.6MB

Download
memory/4488-27-0x00000000051B0000-0x00000000051BA000-memory.dmp

Filesize
40KB

Download
memory/4488-28-0x0000000006100000-0x0000000006718000-memory.dmp

Filesize
6.1MB

Download
memory/4488-29-0x0000000005390000-0x000000000549A000-memory.dmp

Filesize
1.0MB

Download
memory/4488-30-0x00000000052A0000-0x00000000052B2000-memory.dmp

Filesize
72KB

Download
memory/4488-31-0x0000000005300000-0x000000000533C000-memory.dmp

Filesize
240KB

Download
memory/4488-32-0x0000000005340000-0x000000000538C000-memory.dmp

Filesize
304KB

Download
memory/4488-26-0x0000000005020000-0x00000000050B2000-memory.dmp

Filesize
584KB

Download
memory/4488-22-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download

Analysis

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