asyncrat | 3c6956b942e54a47a01471139a60081ed790c96a1af0e5c2e194eea5904ab036

General

Target

613bdc17f7d492cc6f14bbd7651d17e8.exe
Size

43KB
MD5

613bdc17f7d492cc6f14bbd7651d17e8
SHA1

10ab0fba1d4f303135357dd6494a259413136586
SHA256

3c6956b942e54a47a01471139a60081ed790c96a1af0e5c2e194eea5904ab036
SHA512

c8e7e7b743b8eec08e3c9bc0825087a04c5cc1a7876561c8b831e62b43bfce52747544af611addf26876c7e8093f407943fe615b4d711d5e170833a5678e117e
SSDEEP

768:Os5snhwotZFLyGH5TRTq2MrxzQkb7BOd0DPILc2AD2VE69twf+:XCnhwGO28Xb7BU0DPvNf+

Score

10^/10

asyncrat redline hexo-software discovery infostealer rat spyware stealer

Malware Config

Extracted

Family

redline

Botnet

HEXO-SOFTWARE

C2

amrican-sport-live-stream.cc:4581

Attributes

auth_value
fea440ffae02b6f56d7b00fe8105ccb8

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
rat asyncrat
RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
infostealer redline

RedLine payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4712-146-0x0000000000400000-0x0000000000460000-memory.dmp	family_redline

Downloads MZ/PE file
Executes dropped EXE 2 IoCs

Processes:

CheckSystemT.exeCheckMemoryB.exe

pid process

4716 CheckSystemT.exe
1716 CheckMemoryB.exe

pid	process
4716	CheckSystemT.exe
1716	CheckMemoryB.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

Processes:

613bdc17f7d492cc6f14bbd7651d17e8.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	613bdc17f7d492cc6f14bbd7651d17e8.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 cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of SetThreadContext 2 IoCs

Processes:

CheckSystemT.exeCheckMemoryB.exe

description	pid	process	target process
PID 4716 set thread context of 4712	4716	CheckSystemT.exe	RegAsm.exe
PID 1716 set thread context of 4412	1716	CheckMemoryB.exe	RegAsm.exe

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

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

RegAsm.exeRegAsm.exe

pid process

4412 RegAsm.exe
4712 RegAsm.exe
4412 RegAsm.exe
4712 RegAsm.exe

pid	process
4412	RegAsm.exe
4712	RegAsm.exe
4412	RegAsm.exe
4712	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

613bdc17f7d492cc6f14bbd7651d17e8.exeCheckSystemT.exeCheckMemoryB.exeRegAsm.exeRegAsm.exe

description	pid	process
Token: SeDebugPrivilege	3496	613bdc17f7d492cc6f14bbd7651d17e8.exe
Token: SeDebugPrivilege	4716	CheckSystemT.exe
Token: SeDebugPrivilege	1716	CheckMemoryB.exe
Token: SeDebugPrivilege	4412	RegAsm.exe
Token: SeDebugPrivilege	4712	RegAsm.exe

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

613bdc17f7d492cc6f14bbd7651d17e8.exeCheckSystemT.exeCheckMemoryB.exe

description	pid	process	target process
PID 3496 wrote to memory of 4716	3496	613bdc17f7d492cc6f14bbd7651d17e8.exe	CheckSystemT.exe
PID 3496 wrote to memory of 4716	3496	613bdc17f7d492cc6f14bbd7651d17e8.exe	CheckSystemT.exe
PID 3496 wrote to memory of 4716	3496	613bdc17f7d492cc6f14bbd7651d17e8.exe	CheckSystemT.exe
PID 3496 wrote to memory of 1716	3496	613bdc17f7d492cc6f14bbd7651d17e8.exe	CheckMemoryB.exe
PID 3496 wrote to memory of 1716	3496	613bdc17f7d492cc6f14bbd7651d17e8.exe	CheckMemoryB.exe
PID 3496 wrote to memory of 1716	3496	613bdc17f7d492cc6f14bbd7651d17e8.exe	CheckMemoryB.exe
PID 4716 wrote to memory of 4712	4716	CheckSystemT.exe	RegAsm.exe
PID 4716 wrote to memory of 4712	4716	CheckSystemT.exe	RegAsm.exe
PID 4716 wrote to memory of 4712	4716	CheckSystemT.exe	RegAsm.exe
PID 1716 wrote to memory of 4412	1716	CheckMemoryB.exe	RegAsm.exe
PID 1716 wrote to memory of 4412	1716	CheckMemoryB.exe	RegAsm.exe
PID 1716 wrote to memory of 4412	1716	CheckMemoryB.exe	RegAsm.exe
PID 4716 wrote to memory of 4712	4716	CheckSystemT.exe	RegAsm.exe
PID 1716 wrote to memory of 4412	1716	CheckMemoryB.exe	RegAsm.exe
PID 4716 wrote to memory of 4712	4716	CheckSystemT.exe	RegAsm.exe
PID 4716 wrote to memory of 4712	4716	CheckSystemT.exe	RegAsm.exe
PID 4716 wrote to memory of 4712	4716	CheckSystemT.exe	RegAsm.exe
PID 4716 wrote to memory of 4712	4716	CheckSystemT.exe	RegAsm.exe
PID 1716 wrote to memory of 4412	1716	CheckMemoryB.exe	RegAsm.exe
PID 1716 wrote to memory of 4412	1716	CheckMemoryB.exe	RegAsm.exe
PID 1716 wrote to memory of 4412	1716	CheckMemoryB.exe	RegAsm.exe
PID 1716 wrote to memory of 4412	1716	CheckMemoryB.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\613bdc17f7d492cc6f14bbd7651d17e8.exe
"C:\Users\Admin\AppData\Local\Temp\613bdc17f7d492cc6f14bbd7651d17e8.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3496

C:\Users\Admin\AppData\Roaming\CheckSystemT.exe
"C:\Users\Admin\AppData\Roaming\CheckSystemT.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4716

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4712

C:\Users\Admin\AppData\Roaming\CheckMemoryB.exe
"C:\Users\Admin\AppData\Roaming\CheckMemoryB.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1716

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4412

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\CheckMemoryB.exe
Filesize
1.8MB

MD5
43f735e99626467bcec0895ddc51ee14

SHA1
cfbd389da2a60e4e39b8ce3bb56ca57506985465

SHA256
79208f5bcd29a83d75bb073d3f48a483cd51dbd53e9cee5472ab4947a1ede05b

SHA512
467f650679e5170b2387fdf16087b3d114d2ec980b194d2e3ab233ce53497a57356fff195a8d222c946070b6e5d929b88fa33f776a5158343cf1fa259c73ddf4

Download Submit
C:\Users\Admin\AppData\Roaming\CheckMemoryB.exe
Filesize
1.8MB

MD5
43f735e99626467bcec0895ddc51ee14

SHA1
cfbd389da2a60e4e39b8ce3bb56ca57506985465

SHA256
79208f5bcd29a83d75bb073d3f48a483cd51dbd53e9cee5472ab4947a1ede05b

SHA512
467f650679e5170b2387fdf16087b3d114d2ec980b194d2e3ab233ce53497a57356fff195a8d222c946070b6e5d929b88fa33f776a5158343cf1fa259c73ddf4

Download Submit
C:\Users\Admin\AppData\Roaming\CheckSystemT.exe
Filesize
1.8MB

MD5
43f735e99626467bcec0895ddc51ee14

SHA1
cfbd389da2a60e4e39b8ce3bb56ca57506985465

SHA256
79208f5bcd29a83d75bb073d3f48a483cd51dbd53e9cee5472ab4947a1ede05b

SHA512
467f650679e5170b2387fdf16087b3d114d2ec980b194d2e3ab233ce53497a57356fff195a8d222c946070b6e5d929b88fa33f776a5158343cf1fa259c73ddf4

Download Submit
C:\Users\Admin\AppData\Roaming\CheckSystemT.exe
Filesize
1.8MB

MD5
43f735e99626467bcec0895ddc51ee14

SHA1
cfbd389da2a60e4e39b8ce3bb56ca57506985465

SHA256
79208f5bcd29a83d75bb073d3f48a483cd51dbd53e9cee5472ab4947a1ede05b

SHA512
467f650679e5170b2387fdf16087b3d114d2ec980b194d2e3ab233ce53497a57356fff195a8d222c946070b6e5d929b88fa33f776a5158343cf1fa259c73ddf4

Download Submit
memory/1716-141-0x000000003F830000-0x000000003F896000-memory.dmp

Filesize
408KB

Download
memory/1716-140-0x0000000004D90000-0x0000000004DB2000-memory.dmp

Filesize
136KB

Download
memory/1716-137-0x0000000000000000-mapping.dmp

Download
memory/3496-132-0x0000000000C30000-0x0000000000C40000-memory.dmp

Filesize
64KB

Download
memory/3496-157-0x00000000073C0000-0x00000000073DE000-memory.dmp

Filesize
120KB

Download
memory/3496-152-0x0000000006520000-0x00000000065BC000-memory.dmp

Filesize
624KB

Download
memory/4412-154-0x0000000005E40000-0x0000000005E90000-memory.dmp

Filesize
320KB

Download
memory/4412-153-0x00000000060C0000-0x0000000006136000-memory.dmp

Filesize
472KB

Download
memory/4412-149-0x0000000005000000-0x000000000510A000-memory.dmp

Filesize
1.0MB

Download
memory/4412-144-0x0000000000000000-mapping.dmp

Download
memory/4412-150-0x0000000004F30000-0x0000000004F42000-memory.dmp

Filesize
72KB

Download
memory/4412-148-0x00000000054B0000-0x0000000005AC8000-memory.dmp

Filesize
6.1MB

Download
memory/4712-145-0x0000000000000000-mapping.dmp

Download
memory/4712-146-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/4712-151-0x0000000004F70000-0x0000000004FAC000-memory.dmp

Filesize
240KB

Download
memory/4712-155-0x0000000006CC0000-0x0000000006E82000-memory.dmp

Filesize
1.8MB

Download
memory/4712-156-0x0000000007710000-0x0000000007C3C000-memory.dmp

Filesize
5.2MB

Download
memory/4716-143-0x0000000040D30000-0x00000000412D4000-memory.dmp

Filesize
5.6MB

Download
memory/4716-142-0x00000000406E0000-0x0000000040772000-memory.dmp

Filesize
584KB

Download
memory/4716-136-0x0000000000B60000-0x0000000000D30000-memory.dmp

Filesize
1.8MB

Download
memory/4716-133-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads