redline | e4fc635ea1f2fbe988ee1df4535bdd2648eb701f7de8130abeddeb9d17b9bb04

General

Target
wam.exe
Size 32KB
Sample220516-ppgegabec7
SHA256 e4fc635ea1f2fbe988ee1df4535bdd2648eb701f7de8130abeddeb9d17b9bb04
MD5 3f21ab537b6ed0fe7cefa332d975aac6
SHA1 40c41979e539dbe5be944b16aba6ce226c4fab8f
SHA512 75eb4a4b19ad5a8be67803684650aa9cf96ff9d0a606785cd40d8a8f25aefb601a9bec4a2d6b580fced06e455f2299edd7ccd7a9540b48d2958e789108e4f5b0
MD5 SHA1 SHA512

Score

10^/10

redline smokeloader groma backdoor infostealer persistence trojan

Malware Config

Extracted

Family

redline

Botnet

groma

C2

65.108.27.131:45256

Attributes

auth_value
e71f2c2e47160b922fca6709a510483c

Extracted

Family

smokeloader

Version

2020

C2

http://ghahantellorb.com/
http://hasarcyaionex.shop/

rc4.i32

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/2100-138-0x0000000000400000-0x0000000000420000-memory.dmp	family_redline

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader

Executes dropped EXE 1 IoCs

pid	Process
2732	Aalaxdhmax1.exe

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-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	wam.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Mlffvuxh = "\"C:\\Users\\Admin\\AppData\\Roaming\\Ruaqohew\\Mlffvuxh.exe\""	wam.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2724 set thread context of 2100	2724	wam.exe	92

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

System Information Discovery
T1082

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	Aalaxdhmax1.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	Aalaxdhmax1.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	Aalaxdhmax1.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
4932	timeout.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2732	Aalaxdhmax1.exe
2732	Aalaxdhmax1.exe
2724	wam.exe
2724	wam.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2724	wam.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2724 wrote to memory of 4372	2724	wam.exe	83
PID 2724 wrote to memory of 4372	2724	wam.exe	83
PID 2724 wrote to memory of 4372	2724	wam.exe	83
PID 4372 wrote to memory of 4932	4372	cmd.exe	86
PID 4372 wrote to memory of 4932	4372	cmd.exe	86
PID 4372 wrote to memory of 4932	4372	cmd.exe	86
PID 2724 wrote to memory of 2732	2724	wam.exe	91
PID 2724 wrote to memory of 2732	2724	wam.exe	91
PID 2724 wrote to memory of 2732	2724	wam.exe	91
PID 2724 wrote to memory of 2100	2724	wam.exe	92
PID 2724 wrote to memory of 2100	2724	wam.exe	92
PID 2724 wrote to memory of 2100	2724	wam.exe	92
PID 2724 wrote to memory of 2100	2724	wam.exe	92
PID 2724 wrote to memory of 2100	2724	wam.exe	92
PID 2724 wrote to memory of 2100	2724	wam.exe	92
PID 2724 wrote to memory of 2100	2724	wam.exe	92
PID 2724 wrote to memory of 2100	2724	wam.exe	92

C:\Users\Admin\AppData\Local\Temp\wam.exe
"C:\Users\Admin\AppData\Local\Temp\wam.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2724
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout 45
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4372
- - C:\Windows\SysWOW64\timeout.exe
    timeout 45
    3⤵
    - Delays execution with timeout.exe
    PID:4932
- C:\Users\Admin\AppData\Local\Temp\Aalaxdhmax1.exe
  "C:\Users\Admin\AppData\Local\Temp\Aalaxdhmax1.exe"
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  PID:2732
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  2⤵
  PID:2100

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

Aalaxdhmax1.exe

Path C:\Users\Admin\AppData\Local\Temp\Aalaxdhmax1.exe
Size 29KB
SHA256 0c556a31769567549fceccb08ea370b86a2804ea2ee2c2fdb04127a02f3f0db1
MD5 35073d6e2ac3b78d20dcef8fdd136d0f
SHA1 eabf9b790b92b1f0b8bd11d5a4b964ba7a108a2c
SHA512 25940a884d0efbb0e3a4b7fb377d86db1e6b8a8847a3b23f005d8f32aee10212ee7180fb50bf83b921ee8a45d4d8a5a48871621eeae2db8e30dd562f435eef16
SSDEEP 768:YKyAeZ46JNZ6GGwVJASRTO/pOIL0KdNGMLSk6O:Y1PZ4sX6GX3dNIg4pS
MD5 SHA1 SHA512 SSDEEP

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Aalaxdhmax1.exe

Path C:\Users\Admin\AppData\Local\Temp\Aalaxdhmax1.exe
Size 29KB
SHA256 0c556a31769567549fceccb08ea370b86a2804ea2ee2c2fdb04127a02f3f0db1
MD5 35073d6e2ac3b78d20dcef8fdd136d0f
SHA1 eabf9b790b92b1f0b8bd11d5a4b964ba7a108a2c
SHA512 25940a884d0efbb0e3a4b7fb377d86db1e6b8a8847a3b23f005d8f32aee10212ee7180fb50bf83b921ee8a45d4d8a5a48871621eeae2db8e30dd562f435eef16
SSDEEP 768:YKyAeZ46JNZ6GGwVJASRTO/pOIL0KdNGMLSk6O:Y1PZ4sX6GX3dNIg4pS
MD5 SHA1 SHA512 SSDEEP

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memory/2100-138-0x0000000000400000-0x0000000000420000-memory.dmp

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memory/2724-130-0x00000000009A0000-0x00000000009AC000-memory.dmp

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memory/2724-136-0x00000000072E0000-0x0000000007346000-memory.dmp

Download

memory/2732-139-0x0000000000400000-0x0000000000409000-memory.dmp

Download

memory/3116-140-0x0000000000910000-0x0000000000926000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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