asyncrat | 03249216f693b7eba0f38fa90c5d183dd61ce61a20f481c8973ebf271871e54a

Analysis

max time kernel
135s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
23-03-2023 12:48

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General

Target

Odeme22323.exe
Size

814KB
MD5

5cb296788614c0cbd3c912d8d2fdca36
SHA1

ff9d0762b965ac37faa9f4c3cf9faaa0d1ec57ae
SHA256

a68850f869d5a33aeedeb894e6ab9c743d35be9da971dea04361664fc00cca18
SHA512

5e4e918c13292f8bd4f349862a01e19dd03ae7e6f8a600c8a63b262c74584d1a1c4e2c4dd82402e4f0c4e8686ac110b217c2144af5df4709478b2960e177fe84
SSDEEP

24576:wNA3R5drX2D7hXzwX4acpkEFhVesL0P6NuxLHb:p5ETpLA6NcLHb

Score

10^/10

asyncrat mnock rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Mnock

mooroopecamroy.sytes.net:1452

mooroopecamroy.sytes.net:1432

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
true
install_file
crssi.exe
install_folder
%AppData%

aes.plain

Signatures

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

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4500-162-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat

Checks computer location settings 2 TTPs 3 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

wagfhdg.sfx.exewagfhdg.exeOdeme22323.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation	wagfhdg.sfx.exe
Key value queried	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation	wagfhdg.exe
Key value queried	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation	Odeme22323.exe

Executes dropped EXE 5 IoCs

Processes:

wagfhdg.sfx.exewagfhdg.exewagfhdg.execrssi.execrssi.exe

pid process

2956 wagfhdg.sfx.exe
1680 wagfhdg.exe
4500 wagfhdg.exe
1992 crssi.exe
4124 crssi.exe

pid	process
2956	wagfhdg.sfx.exe
1680	wagfhdg.exe
4500	wagfhdg.exe
1992	crssi.exe
4124	crssi.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

wagfhdg.execrssi.exe

description	pid	process	target process
PID 1680 set thread context of 4500	1680	wagfhdg.exe	wagfhdg.exe
PID 1992 set thread context of 4124	1992	crssi.exe	crssi.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

3068 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

3124 timeout.exe

pid	process
3068	schtasks.exe

pid	process
3124	timeout.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

wagfhdg.exe

pid	process
4500	wagfhdg.exe
4500	wagfhdg.exe
4500	wagfhdg.exe
4500	wagfhdg.exe
4500	wagfhdg.exe
4500	wagfhdg.exe
4500	wagfhdg.exe
4500	wagfhdg.exe
4500	wagfhdg.exe
4500	wagfhdg.exe
4500	wagfhdg.exe
4500	wagfhdg.exe
4500	wagfhdg.exe
4500	wagfhdg.exe
4500	wagfhdg.exe
4500	wagfhdg.exe
4500	wagfhdg.exe
4500	wagfhdg.exe
4500	wagfhdg.exe
4500	wagfhdg.exe
4500	wagfhdg.exe
4500	wagfhdg.exe
4500	wagfhdg.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

wagfhdg.exewagfhdg.execrssi.execrssi.exe

description	pid	process
Token: SeDebugPrivilege	1680	wagfhdg.exe
Token: SeDebugPrivilege	4500	wagfhdg.exe
Token: SeDebugPrivilege	1992	crssi.exe
Token: SeDebugPrivilege	4124	crssi.exe

Suspicious use of WriteProcessMemory 40 IoCs

Processes:

Odeme22323.execmd.exewagfhdg.sfx.exewagfhdg.exewagfhdg.execmd.execmd.execrssi.exe

description	pid	process	target process
PID 3432 wrote to memory of 1744	3432	Odeme22323.exe	cmd.exe
PID 3432 wrote to memory of 1744	3432	Odeme22323.exe	cmd.exe
PID 3432 wrote to memory of 1744	3432	Odeme22323.exe	cmd.exe
PID 1744 wrote to memory of 2956	1744	cmd.exe	wagfhdg.sfx.exe
PID 1744 wrote to memory of 2956	1744	cmd.exe	wagfhdg.sfx.exe
PID 1744 wrote to memory of 2956	1744	cmd.exe	wagfhdg.sfx.exe
PID 2956 wrote to memory of 1680	2956	wagfhdg.sfx.exe	wagfhdg.exe
PID 2956 wrote to memory of 1680	2956	wagfhdg.sfx.exe	wagfhdg.exe
PID 2956 wrote to memory of 1680	2956	wagfhdg.sfx.exe	wagfhdg.exe
PID 1680 wrote to memory of 4500	1680	wagfhdg.exe	wagfhdg.exe
PID 1680 wrote to memory of 4500	1680	wagfhdg.exe	wagfhdg.exe
PID 1680 wrote to memory of 4500	1680	wagfhdg.exe	wagfhdg.exe
PID 1680 wrote to memory of 4500	1680	wagfhdg.exe	wagfhdg.exe
PID 1680 wrote to memory of 4500	1680	wagfhdg.exe	wagfhdg.exe
PID 1680 wrote to memory of 4500	1680	wagfhdg.exe	wagfhdg.exe
PID 1680 wrote to memory of 4500	1680	wagfhdg.exe	wagfhdg.exe
PID 1680 wrote to memory of 4500	1680	wagfhdg.exe	wagfhdg.exe
PID 4500 wrote to memory of 4728	4500	wagfhdg.exe	cmd.exe
PID 4500 wrote to memory of 4728	4500	wagfhdg.exe	cmd.exe
PID 4500 wrote to memory of 4728	4500	wagfhdg.exe	cmd.exe
PID 4500 wrote to memory of 2756	4500	wagfhdg.exe	cmd.exe
PID 4500 wrote to memory of 2756	4500	wagfhdg.exe	cmd.exe
PID 4500 wrote to memory of 2756	4500	wagfhdg.exe	cmd.exe
PID 2756 wrote to memory of 3124	2756	cmd.exe	timeout.exe
PID 2756 wrote to memory of 3124	2756	cmd.exe	timeout.exe
PID 2756 wrote to memory of 3124	2756	cmd.exe	timeout.exe
PID 4728 wrote to memory of 3068	4728	cmd.exe	schtasks.exe
PID 4728 wrote to memory of 3068	4728	cmd.exe	schtasks.exe
PID 4728 wrote to memory of 3068	4728	cmd.exe	schtasks.exe
PID 2756 wrote to memory of 1992	2756	cmd.exe	crssi.exe
PID 2756 wrote to memory of 1992	2756	cmd.exe	crssi.exe
PID 2756 wrote to memory of 1992	2756	cmd.exe	crssi.exe
PID 1992 wrote to memory of 4124	1992	crssi.exe	crssi.exe
PID 1992 wrote to memory of 4124	1992	crssi.exe	crssi.exe
PID 1992 wrote to memory of 4124	1992	crssi.exe	crssi.exe
PID 1992 wrote to memory of 4124	1992	crssi.exe	crssi.exe
PID 1992 wrote to memory of 4124	1992	crssi.exe	crssi.exe
PID 1992 wrote to memory of 4124	1992	crssi.exe	crssi.exe
PID 1992 wrote to memory of 4124	1992	crssi.exe	crssi.exe
PID 1992 wrote to memory of 4124	1992	crssi.exe	crssi.exe

C:\Users\Admin\AppData\Local\Temp\Odeme22323.exe
"C:\Users\Admin\AppData\Local\Temp\Odeme22323.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3432

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\hliychjo.cmd" "
2⤵
- Suspicious use of WriteProcessMemory
PID:1744

C:\Users\Admin\AppData\Local\Temp\wagfhdg.sfx.exe
wagfhdg.sfx.exe -dC:\Users\Admin\AppData\Local\Temp -pldqboofhafugBbsmheutdbtrfcaszjnhjfehfegddeoqxapofdgyayhhddfdtgxdkqekecVohobthtigdge
3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2956

C:\Users\Admin\AppData\Local\Temp\wagfhdg.exe
"C:\Users\Admin\AppData\Local\Temp\wagfhdg.exe"
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1680

C:\Users\Admin\AppData\Local\Temp\wagfhdg.exe
C:\Users\Admin\AppData\Local\Temp\wagfhdg.exe
5⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4500

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "crssi" /tr '"C:\Users\Admin\AppData\Roaming\crssi.exe"' & exit
6⤵
- Suspicious use of WriteProcessMemory
PID:4728

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "crssi" /tr '"C:\Users\Admin\AppData\Roaming\crssi.exe"'
7⤵
- Creates scheduled task(s)
PID:3068

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp21EF.tmp.bat""
6⤵
- Suspicious use of WriteProcessMemory
PID:2756

C:\Windows\SysWOW64\timeout.exe
timeout 3
7⤵
- Delays execution with timeout.exe
PID:3124

C:\Users\Admin\AppData\Roaming\crssi.exe
"C:\Users\Admin\AppData\Roaming\crssi.exe"
7⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1992

C:\Users\Admin\AppData\Roaming\crssi.exe
C:\Users\Admin\AppData\Roaming\crssi.exe
8⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4124

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\crssi.exe.log
Filesize
706B

MD5
d95c58e609838928f0f49837cab7dfd2

SHA1
55e7139a1e3899195b92ed8771d1ca2c7d53c916

SHA256
0407c814aef0d62aec7fd39b7c2f614746f0d8ff41f8ef957736f520f14b0339

SHA512
405310b29a833604c6627063bfdcf055a197e01f633ef21da238f1a6415a02e21315d689b4a6669db23e82152bed6f3492afb60963e6b2a0e9bb2ac09a480b5d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\wagfhdg.exe.log
Filesize
706B

MD5
d95c58e609838928f0f49837cab7dfd2

SHA1
55e7139a1e3899195b92ed8771d1ca2c7d53c916

SHA256
0407c814aef0d62aec7fd39b7c2f614746f0d8ff41f8ef957736f520f14b0339

SHA512
405310b29a833604c6627063bfdcf055a197e01f633ef21da238f1a6415a02e21315d689b4a6669db23e82152bed6f3492afb60963e6b2a0e9bb2ac09a480b5d

Download Submit
C:\Users\Admin\AppData\Local\Temp\hliychjo.cmd
Filesize
10KB

MD5
950e9f9672dd5df3d3c60a21936ab878

SHA1
b0d10b65dc7d6bb309445b92ee00763aa72acc2a

SHA256
ffd2a2c09552ae541d9cdc5c7d6d98b9aa443c26bfea83f658636cc000159fa8

SHA512
058962e872d636341795af3a168b392c413b4e976d9a4b8af0c10b607e082acaa09a716d2bfa084b9f8822b240ac10520eda3369699098457e7d81e81b26e6ba

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp21EF.tmp.bat
Filesize
149B

MD5
3a4c93fb1c80f80278695b5a5a51210f

SHA1
12ad88516e01f09a0309ed69d877ff547fcefff4

SHA256
4469241150920fdd8c8fef6039b4d9b69f37acde232b146b1cc086efdaed4e97

SHA512
665c408f4baa527e2f53a629248fdb306ab05c10b1ad4f39aa5d8b4386f9f9cca1286fc7306f2ef312584bd2c848d1503812d1d60de77dcc2925172117ad998f

Download Submit
C:\Users\Admin\AppData\Local\Temp\wagfhdg.exe
Filesize
227KB

MD5
1de4ee1525ce376c03e493cd3ca566de

SHA1
46afa5761516c2e99833d7eb131ef403dc57ae1f

SHA256
4c602cfc8d0fed8bf374f651358a3d3f9d99f84b2c333a2b516f6145b64a4f21

SHA512
69c2eaa784e4036b673dded9bbf34cd6f47c23e074307341f7656ec91b1cf063aae5eeb3e0215e32869a56882684930dec50905f995e66cfce0a473abd31a71e

Download Submit
C:\Users\Admin\AppData\Local\Temp\wagfhdg.exe
Filesize
227KB

MD5
1de4ee1525ce376c03e493cd3ca566de

SHA1
46afa5761516c2e99833d7eb131ef403dc57ae1f

SHA256
4c602cfc8d0fed8bf374f651358a3d3f9d99f84b2c333a2b516f6145b64a4f21

SHA512
69c2eaa784e4036b673dded9bbf34cd6f47c23e074307341f7656ec91b1cf063aae5eeb3e0215e32869a56882684930dec50905f995e66cfce0a473abd31a71e

Download Submit
C:\Users\Admin\AppData\Local\Temp\wagfhdg.exe
Filesize
227KB

MD5
1de4ee1525ce376c03e493cd3ca566de

SHA1
46afa5761516c2e99833d7eb131ef403dc57ae1f

SHA256
4c602cfc8d0fed8bf374f651358a3d3f9d99f84b2c333a2b516f6145b64a4f21

SHA512
69c2eaa784e4036b673dded9bbf34cd6f47c23e074307341f7656ec91b1cf063aae5eeb3e0215e32869a56882684930dec50905f995e66cfce0a473abd31a71e

Download Submit
C:\Users\Admin\AppData\Local\Temp\wagfhdg.exe
Filesize
227KB

MD5
1de4ee1525ce376c03e493cd3ca566de

SHA1
46afa5761516c2e99833d7eb131ef403dc57ae1f

SHA256
4c602cfc8d0fed8bf374f651358a3d3f9d99f84b2c333a2b516f6145b64a4f21

SHA512
69c2eaa784e4036b673dded9bbf34cd6f47c23e074307341f7656ec91b1cf063aae5eeb3e0215e32869a56882684930dec50905f995e66cfce0a473abd31a71e

Download Submit
C:\Users\Admin\AppData\Local\Temp\wagfhdg.sfx.exe
Filesize
624KB

MD5
745b22b339c45b4d0955f8e776dfd729

SHA1
5603f977b25900da600d4fb8dd2fc659afe6f7cd

SHA256
fecdac4a0a26f13f4089497be9e56de44dd6ce4d2a645ef992bdc817e9546a1f

SHA512
2ea4528adbdff20f4af51823d9e52714e79d5eb8fc4ea01889c398b920dfe1cf2edbb6479b1fc90f9f3477a9a9887a513db03b16013dab7fb78d493566307d64

Download Submit
C:\Users\Admin\AppData\Local\Temp\wagfhdg.sfx.exe
Filesize
624KB

MD5
745b22b339c45b4d0955f8e776dfd729

SHA1
5603f977b25900da600d4fb8dd2fc659afe6f7cd

SHA256
fecdac4a0a26f13f4089497be9e56de44dd6ce4d2a645ef992bdc817e9546a1f

SHA512
2ea4528adbdff20f4af51823d9e52714e79d5eb8fc4ea01889c398b920dfe1cf2edbb6479b1fc90f9f3477a9a9887a513db03b16013dab7fb78d493566307d64

Download Submit
C:\Users\Admin\AppData\Roaming\crssi.exe
Filesize
227KB

MD5
1de4ee1525ce376c03e493cd3ca566de

SHA1
46afa5761516c2e99833d7eb131ef403dc57ae1f

SHA256
4c602cfc8d0fed8bf374f651358a3d3f9d99f84b2c333a2b516f6145b64a4f21

SHA512
69c2eaa784e4036b673dded9bbf34cd6f47c23e074307341f7656ec91b1cf063aae5eeb3e0215e32869a56882684930dec50905f995e66cfce0a473abd31a71e

Download Submit
C:\Users\Admin\AppData\Roaming\crssi.exe
Filesize
227KB

MD5
1de4ee1525ce376c03e493cd3ca566de

SHA1
46afa5761516c2e99833d7eb131ef403dc57ae1f

SHA256
4c602cfc8d0fed8bf374f651358a3d3f9d99f84b2c333a2b516f6145b64a4f21

SHA512
69c2eaa784e4036b673dded9bbf34cd6f47c23e074307341f7656ec91b1cf063aae5eeb3e0215e32869a56882684930dec50905f995e66cfce0a473abd31a71e

Download Submit
C:\Users\Admin\AppData\Roaming\crssi.exe
Filesize
227KB

MD5
1de4ee1525ce376c03e493cd3ca566de

SHA1
46afa5761516c2e99833d7eb131ef403dc57ae1f

SHA256
4c602cfc8d0fed8bf374f651358a3d3f9d99f84b2c333a2b516f6145b64a4f21

SHA512
69c2eaa784e4036b673dded9bbf34cd6f47c23e074307341f7656ec91b1cf063aae5eeb3e0215e32869a56882684930dec50905f995e66cfce0a473abd31a71e

Download Submit
memory/1680-161-0x0000000007640000-0x00000000076D2000-memory.dmp

Filesize
584KB

Download
memory/1680-160-0x0000000005040000-0x0000000005050000-memory.dmp

Filesize
64KB

Download
memory/1680-159-0x0000000007BF0000-0x0000000008194000-memory.dmp

Filesize
5.6MB

Download
memory/1680-158-0x00000000075A0000-0x000000000763C000-memory.dmp

Filesize
624KB

Download
memory/1680-157-0x0000000000650000-0x000000000068E000-memory.dmp

Filesize
248KB

Download
memory/1992-175-0x0000000005360000-0x0000000005370000-memory.dmp

Filesize
64KB

Download
memory/4124-180-0x0000000004D70000-0x0000000004D80000-memory.dmp

Filesize
64KB

Download
memory/4124-181-0x0000000004D70000-0x0000000004D80000-memory.dmp

Filesize
64KB

Download
memory/4500-162-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4500-166-0x0000000004E70000-0x0000000004E80000-memory.dmp

Filesize
64KB

Download
memory/4500-167-0x0000000004E80000-0x0000000004EE6000-memory.dmp

Filesize
408KB

Download