asyncrat | 0ffcefbcd717f506189bb033da5d2b7d56acebe6ae245e881b6c7b5ae1fb2f3f

General

Target
0ffcefbcd717f506189bb033da5d2b7d56acebe6ae245e881b6c7b5ae1fb2f3f.exe
Size 45KB
Sample260530-xte17sbx21
SHA256 0ffcefbcd717f506189bb033da5d2b7d56acebe6ae245e881b6c7b5ae1fb2f3f
MD5 33d70a6cf0e99d60e9da027e6f2ab22d
SHA1 eb0d5d037c4624473ec59ae5c3d9352f462d3752
SHA512 1a942a31edb86d7a5d0d4a92dea6c5b729eb3ef53b338ba1b58dfc870694d64ca430454a0dd7a178b6f24abab98739dd6226731f21273314e4e300d4083c16c1
SSDEEP 768:puTO9TgQsFcZWURDOjmo2qwHoopCBK9INJPIZzjb9gX3iAmQYjZsIyBDZ7x:puTO9TgQCv2Xo6bIwZ3bqXSAUdsIMd7x
TLSH
T1F2230B0037E8812BF2BE4F7898F26145867AF2673603D54A2CC452DB5713BC6DA436EE
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

default defense_evasion discovery execution asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

sextops.blog:443
sextops.blog:80
sextops.blog:7797
sextops.blog:8707
sextops.blog:6620
www.sextops.blog:443
www.sextops.blog:80
www.sextops.blog:7797
www.sextops.blog:8707
www.sextops.blog:6620
darkside.sextops.blog:443
darkside.sextops.blog:80
darkside.sextops.blog:7797
darkside.sextops.blog:8707
darkside.sextops.blog:6620
industroyer.sextops.blog:443
industroyer.sextops.blog:80
industroyer.sextops.blog:7797
industroyer.sextops.blog:8707
industroyer.sextops.blog:6620

Mutex

utntrJQt1MlR

Attributes

delay
0
install
true
install_file
7krkd6v.exe
install_folder
%AppData%

aes.plain

Signatures

Family: AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/files/0x001d00000002b328-8.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
3712	7krkd6v.exe
4756	7krkd6v.exe

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 7 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7krkd6v.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7krkd6v.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0ffcefbcd717f506189bb033da5d2b7d56acebe6ae245e881b6c7b5ae1fb2f3f.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
764	timeout.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2568	schtasks.exe

Suspicious behavior: EnumeratesProcesses 19 IoCs

pid	Process
484	0ffcefbcd717f506189bb033da5d2b7d56acebe6ae245e881b6c7b5ae1fb2f3f.exe
484	0ffcefbcd717f506189bb033da5d2b7d56acebe6ae245e881b6c7b5ae1fb2f3f.exe
484	0ffcefbcd717f506189bb033da5d2b7d56acebe6ae245e881b6c7b5ae1fb2f3f.exe
484	0ffcefbcd717f506189bb033da5d2b7d56acebe6ae245e881b6c7b5ae1fb2f3f.exe
484	0ffcefbcd717f506189bb033da5d2b7d56acebe6ae245e881b6c7b5ae1fb2f3f.exe
484	0ffcefbcd717f506189bb033da5d2b7d56acebe6ae245e881b6c7b5ae1fb2f3f.exe
484	0ffcefbcd717f506189bb033da5d2b7d56acebe6ae245e881b6c7b5ae1fb2f3f.exe
484	0ffcefbcd717f506189bb033da5d2b7d56acebe6ae245e881b6c7b5ae1fb2f3f.exe
484	0ffcefbcd717f506189bb033da5d2b7d56acebe6ae245e881b6c7b5ae1fb2f3f.exe
484	0ffcefbcd717f506189bb033da5d2b7d56acebe6ae245e881b6c7b5ae1fb2f3f.exe
484	0ffcefbcd717f506189bb033da5d2b7d56acebe6ae245e881b6c7b5ae1fb2f3f.exe
484	0ffcefbcd717f506189bb033da5d2b7d56acebe6ae245e881b6c7b5ae1fb2f3f.exe
484	0ffcefbcd717f506189bb033da5d2b7d56acebe6ae245e881b6c7b5ae1fb2f3f.exe
484	0ffcefbcd717f506189bb033da5d2b7d56acebe6ae245e881b6c7b5ae1fb2f3f.exe
484	0ffcefbcd717f506189bb033da5d2b7d56acebe6ae245e881b6c7b5ae1fb2f3f.exe
484	0ffcefbcd717f506189bb033da5d2b7d56acebe6ae245e881b6c7b5ae1fb2f3f.exe
484	0ffcefbcd717f506189bb033da5d2b7d56acebe6ae245e881b6c7b5ae1fb2f3f.exe
484	0ffcefbcd717f506189bb033da5d2b7d56acebe6ae245e881b6c7b5ae1fb2f3f.exe
484	0ffcefbcd717f506189bb033da5d2b7d56acebe6ae245e881b6c7b5ae1fb2f3f.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	484	0ffcefbcd717f506189bb033da5d2b7d56acebe6ae245e881b6c7b5ae1fb2f3f.exe
Token: SeDebugPrivilege	3712	7krkd6v.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 484 wrote to memory of 3284	484	0ffcefbcd717f506189bb033da5d2b7d56acebe6ae245e881b6c7b5ae1fb2f3f.exe	83
PID 484 wrote to memory of 1824	484	0ffcefbcd717f506189bb033da5d2b7d56acebe6ae245e881b6c7b5ae1fb2f3f.exe	85
PID 3284 wrote to memory of 2568	3284	cmd.exe	87
PID 1824 wrote to memory of 764	1824	cmd.exe	88
PID 1824 wrote to memory of 4756	1824	cmd.exe	91

C:\Users\Admin\AppData\Local\Temp\0ffcefbcd717f506189bb033da5d2b7d56acebe6ae245e881b6c7b5ae1fb2f3f.exe
"C:\Users\Admin\AppData\Local\Temp\0ffcefbcd717f506189bb033da5d2b7d56acebe6ae245e881b6c7b5ae1fb2f3f.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:484
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "7krkd6v" /tr '"C:\Users\Admin\AppData\Roaming\7krkd6v.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3284
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "7krkd6v" /tr '"C:\Users\Admin\AppData\Roaming\7krkd6v.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2568
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp562A.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1824
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:764
- - C:\Users\Admin\AppData\Roaming\7krkd6v.exe
    "C:\Users\Admin\AppData\Roaming\7krkd6v.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4756

C:\Users\Admin\AppData\Roaming\7krkd6v.exe
"C:\Users\Admin\AppData\Roaming\7krkd6v.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3712

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

tmp562A.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp562A.tmp.bat
Size 151B
SHA256 16d266836de64054b4241aad24d244f7668d32d20f0c685cd342dc6323c7c887
MD5 79af811e99522b5249bfa307dd9f34e7
SHA1 f52b8f6aa153a5e21a2a68f68e12c10760d796d8
SHA512 438255b97d7b4037b34b5c025c035c9c4881baaecceb0ad7ec6973fab92a018c499d09a0e41982a2d28acc273d93ce2dcfcdfcb7cbaf97f7b248cddecd9191af
TLSH
T184C02B53B2C5EB1E2806141302FAD9AC91736C2E3F80BB90C344484E26C0C48F0D9381
MD5 SHA1 SHA512 TLSH

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7krkd6v.exe

Path C:\Users\Admin\AppData\Roaming\7krkd6v.exe
Size 45KB
SHA256 0ffcefbcd717f506189bb033da5d2b7d56acebe6ae245e881b6c7b5ae1fb2f3f
MD5 33d70a6cf0e99d60e9da027e6f2ab22d
SHA1 eb0d5d037c4624473ec59ae5c3d9352f462d3752
SHA512 1a942a31edb86d7a5d0d4a92dea6c5b729eb3ef53b338ba1b58dfc870694d64ca430454a0dd7a178b6f24abab98739dd6226731f21273314e4e300d4083c16c1
SSDEEP 768:puTO9TgQsFcZWURDOjmo2qwHoopCBK9INJPIZzjb9gX3iAmQYjZsIyBDZ7x:puTO9TgQCv2Xo6bIwZ3bqXSAUdsIMd7x
TLSH
T1F2230B0037E8812BF2BE4F7898F26145867AF2673603D54A2CC452DB5713BC6DA436EE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/484-0-0x00000000000B0000-0x00000000000C2000-memory.dmp

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memory/484-1-0x0000000004BE0000-0x0000000004BF0000-memory.dmp

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memory/484-2-0x0000000004B30000-0x0000000004BCC000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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