asyncrat | e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9

General

Target

e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe
Size

652KB
MD5

68aebe67b9ab7f84a4d0520a41de005c
SHA1

aeef03bc26334beb3a92ca7f991772cdf8dd79f4
SHA256

e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9
SHA512

ce173574ceedf7bb672cdbaa69f81e05b659a62d1131f930740d25c56e58db1efdbe70817db84096596274d067153ebcbaedf12bf817a7531ddd8d2f6ccc7546

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

agentttt.ac.ug:6970

agentpurple.ac.ug:6970

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
rat asyncrat

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4872-139-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat

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:

e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe

description	pid	process	target process
PID 4624 set thread context of 4872	4624	e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe	e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe

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

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

Processes:

schtasks.exe

pid process

4380 schtasks.exe

pid	process
4380	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe

pid	process
4624	e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe
4624	e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe

description pid process

Token: SeDebugPrivilege 4624 e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe

description	pid	process
Token: SeDebugPrivilege	4624	e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe

description	pid	process	target process
PID 4624 wrote to memory of 4380	4624	e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe	schtasks.exe
PID 4624 wrote to memory of 4380	4624	e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe	schtasks.exe
PID 4624 wrote to memory of 4380	4624	e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe	schtasks.exe
PID 4624 wrote to memory of 4760	4624	e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe	e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe
PID 4624 wrote to memory of 4760	4624	e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe	e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe
PID 4624 wrote to memory of 4760	4624	e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe	e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe
PID 4624 wrote to memory of 4872	4624	e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe	e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe
PID 4624 wrote to memory of 4872	4624	e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe	e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe
PID 4624 wrote to memory of 4872	4624	e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe	e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe
PID 4624 wrote to memory of 4872	4624	e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe	e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe
PID 4624 wrote to memory of 4872	4624	e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe	e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe
PID 4624 wrote to memory of 4872	4624	e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe	e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe
PID 4624 wrote to memory of 4872	4624	e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe	e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe
PID 4624 wrote to memory of 4872	4624	e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe	e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe

C:\Users\Admin\AppData\Local\Temp\e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe
"C:\Users\Admin\AppData\Local\Temp\e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4624

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\IAapkDPBpUFkb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp21EF.tmp"
2⤵
- Creates scheduled task(s)
PID:4380

C:\Users\Admin\AppData\Local\Temp\e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe
"{path}"
2⤵
PID:4760

C:\Users\Admin\AppData\Local\Temp\e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe
"{path}"
2⤵
PID:4872

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\e12b535ca73d6e7f185422701dbacce05ca928257baab9ff1fa725d1e32abfd9.exe.log
Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp21EF.tmp
Filesize
1KB

MD5
b9eb7932d815f7ade882d3f839b0c522

SHA1
a04a66e7346677687a033b54c7b30e3d9646eff3

SHA256
b3d77a0e1d7f8c467c899818d53668ea40a15d6764f91c4aa01fc252a297f7b2

SHA512
bf32daaafdf9491cfc16e79c63ce90d63cafdf77a375db1c450c32ea8ada02c02cc1918af57b846ad36922416ae463e45f8c8377c8fb86ada600de28b8608025

Download Submit
memory/4380-135-0x0000000000000000-mapping.dmp

Download
memory/4624-130-0x00000000000F0000-0x000000000019A000-memory.dmp

Filesize
680KB

Download
memory/4624-131-0x0000000005150000-0x00000000056F4000-memory.dmp

Filesize
5.6MB

Download
memory/4624-132-0x0000000004BA0000-0x0000000004C32000-memory.dmp

Filesize
584KB

Download
memory/4624-133-0x0000000004B40000-0x0000000004B4A000-memory.dmp

Filesize
40KB

Download
memory/4624-134-0x0000000008470000-0x000000000850C000-memory.dmp

Filesize
624KB

Download
memory/4760-137-0x0000000000000000-mapping.dmp

Download
memory/4872-138-0x0000000000000000-mapping.dmp

Download
memory/4872-139-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads