asyncrat | f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea

General

Target

f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
Size

821KB
MD5

d52ad01a5c9190d57300102c195db59d
SHA1

6864be60323c8db158b2e5f64cd37bd7df8c39ec
SHA256

f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea
SHA512

d6b1fe3937c4613e84e95f2102217946ed5f4beb56d5b6d2b9ad27314160c80659583bab189856196142a70cba3985b036186798722d794f19d7172afd6649d1
SSDEEP

12288:dMSApJVYG5lDLyjsb0eOzkv4R7QnvUUilQ35+6G75V9JhBBxdsP2g:dnsJ39LyjbJkQFMhmC+6GD9X5dsu

Score

10^/10

asyncrat default discovery persistence rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

127.0.0.1:4449

Mutex

lol.exe

Attributes

delay
1
install
true
install_file
lol.exe
install_folder
%AppData%

aes.plain

Signatures

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

VenomRAT 9 IoCs

Detects VenomRAT.

rat

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe	VenomRAT
C:\ProgramData\Synaptics\Synaptics.exe	VenomRAT
behavioral1/memory/2448-25-0x0000000000400000-0x00000000004D3000-memory.dmp	VenomRAT
behavioral1/memory/2992-28-0x0000000001360000-0x0000000001378000-memory.dmp	VenomRAT
behavioral1/memory/2716-37-0x0000000000F70000-0x0000000000F88000-memory.dmp	VenomRAT
behavioral1/memory/2744-95-0x0000000000400000-0x00000000004D3000-memory.dmp	VenomRAT
behavioral1/memory/2744-96-0x0000000000400000-0x00000000004D3000-memory.dmp	VenomRAT
behavioral1/memory/2744-102-0x0000000000400000-0x00000000004D3000-memory.dmp	VenomRAT
behavioral1/memory/2744-127-0x0000000000400000-0x00000000004D3000-memory.dmp	VenomRAT

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe	family_asyncrat

Executes dropped EXE 3 IoCs

Processes:

._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exeSynaptics.exe._cache_Synaptics.exe

pid process

2992 ._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
2744 Synaptics.exe
2716 ._cache_Synaptics.exe

pid	process
2992	._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
2744	Synaptics.exe
2716	._cache_Synaptics.exe

Loads dropped DLL 5 IoCs

Processes:

f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exeSynaptics.exe

pid	process
2448	f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
2448	f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
2448	f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
2744	Synaptics.exe
2744	Synaptics.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\????? = "C:\\ProgramData\\Synaptics\\Synaptics.exe"	f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.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 3 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

Processes:

Synaptics.exeEXCEL.EXEf8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Synaptics.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

EXCEL.EXE

description ioc process

Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2684 EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

pid	process
2684	EXCEL.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe._cache_Synaptics.exe

description	pid	process
Token: SeDebugPrivilege	2992	._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
Token: SeDebugPrivilege	2716	._cache_Synaptics.exe
Token: SeIncreaseQuotaPrivilege	2716	._cache_Synaptics.exe
Token: SeSecurityPrivilege	2716	._cache_Synaptics.exe
Token: SeTakeOwnershipPrivilege	2716	._cache_Synaptics.exe
Token: SeLoadDriverPrivilege	2716	._cache_Synaptics.exe
Token: SeSystemProfilePrivilege	2716	._cache_Synaptics.exe
Token: SeSystemtimePrivilege	2716	._cache_Synaptics.exe
Token: SeProfSingleProcessPrivilege	2716	._cache_Synaptics.exe
Token: SeIncBasePriorityPrivilege	2716	._cache_Synaptics.exe
Token: SeCreatePagefilePrivilege	2716	._cache_Synaptics.exe
Token: SeBackupPrivilege	2716	._cache_Synaptics.exe
Token: SeRestorePrivilege	2716	._cache_Synaptics.exe
Token: SeShutdownPrivilege	2716	._cache_Synaptics.exe
Token: SeDebugPrivilege	2716	._cache_Synaptics.exe
Token: SeSystemEnvironmentPrivilege	2716	._cache_Synaptics.exe
Token: SeRemoteShutdownPrivilege	2716	._cache_Synaptics.exe
Token: SeUndockPrivilege	2716	._cache_Synaptics.exe
Token: SeManageVolumePrivilege	2716	._cache_Synaptics.exe
Token: 33	2716	._cache_Synaptics.exe
Token: 34	2716	._cache_Synaptics.exe
Token: 35	2716	._cache_Synaptics.exe
Token: SeIncreaseQuotaPrivilege	2992	._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
Token: SeSecurityPrivilege	2992	._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
Token: SeTakeOwnershipPrivilege	2992	._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
Token: SeLoadDriverPrivilege	2992	._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
Token: SeSystemProfilePrivilege	2992	._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
Token: SeSystemtimePrivilege	2992	._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
Token: SeProfSingleProcessPrivilege	2992	._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
Token: SeIncBasePriorityPrivilege	2992	._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
Token: SeCreatePagefilePrivilege	2992	._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
Token: SeBackupPrivilege	2992	._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
Token: SeRestorePrivilege	2992	._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
Token: SeShutdownPrivilege	2992	._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
Token: SeDebugPrivilege	2992	._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
Token: SeSystemEnvironmentPrivilege	2992	._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
Token: SeRemoteShutdownPrivilege	2992	._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
Token: SeUndockPrivilege	2992	._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
Token: SeManageVolumePrivilege	2992	._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
Token: 33	2992	._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
Token: 34	2992	._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
Token: 35	2992	._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
Token: SeIncreaseQuotaPrivilege	2716	._cache_Synaptics.exe
Token: SeSecurityPrivilege	2716	._cache_Synaptics.exe
Token: SeTakeOwnershipPrivilege	2716	._cache_Synaptics.exe
Token: SeLoadDriverPrivilege	2716	._cache_Synaptics.exe
Token: SeSystemProfilePrivilege	2716	._cache_Synaptics.exe
Token: SeSystemtimePrivilege	2716	._cache_Synaptics.exe
Token: SeProfSingleProcessPrivilege	2716	._cache_Synaptics.exe
Token: SeIncBasePriorityPrivilege	2716	._cache_Synaptics.exe
Token: SeCreatePagefilePrivilege	2716	._cache_Synaptics.exe
Token: SeBackupPrivilege	2716	._cache_Synaptics.exe
Token: SeRestorePrivilege	2716	._cache_Synaptics.exe
Token: SeShutdownPrivilege	2716	._cache_Synaptics.exe
Token: SeDebugPrivilege	2716	._cache_Synaptics.exe
Token: SeSystemEnvironmentPrivilege	2716	._cache_Synaptics.exe
Token: SeRemoteShutdownPrivilege	2716	._cache_Synaptics.exe
Token: SeUndockPrivilege	2716	._cache_Synaptics.exe
Token: SeManageVolumePrivilege	2716	._cache_Synaptics.exe
Token: 33	2716	._cache_Synaptics.exe
Token: 34	2716	._cache_Synaptics.exe
Token: 35	2716	._cache_Synaptics.exe
Token: SeIncreaseQuotaPrivilege	2992	._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
Token: SeSecurityPrivilege	2992	._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

EXCEL.EXE

pid process

2684 EXCEL.EXE

pid	process
2684	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exeSynaptics.exe

description	pid	process	target process
PID 2448 wrote to memory of 2992	2448	f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe	._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
PID 2448 wrote to memory of 2992	2448	f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe	._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
PID 2448 wrote to memory of 2992	2448	f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe	._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
PID 2448 wrote to memory of 2992	2448	f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe	._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
PID 2448 wrote to memory of 2744	2448	f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe	Synaptics.exe
PID 2448 wrote to memory of 2744	2448	f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe	Synaptics.exe
PID 2448 wrote to memory of 2744	2448	f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe	Synaptics.exe
PID 2448 wrote to memory of 2744	2448	f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe	Synaptics.exe
PID 2744 wrote to memory of 2716	2744	Synaptics.exe	._cache_Synaptics.exe
PID 2744 wrote to memory of 2716	2744	Synaptics.exe	._cache_Synaptics.exe
PID 2744 wrote to memory of 2716	2744	Synaptics.exe	._cache_Synaptics.exe
PID 2744 wrote to memory of 2716	2744	Synaptics.exe	._cache_Synaptics.exe

C:\Users\Admin\AppData\Local\Temp\f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
"C:\Users\Admin\AppData\Local\Temp\f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2448
- C:\Users\Admin\AppData\Local\Temp\._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe
  "C:\Users\Admin\AppData\Local\Temp\._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2992
- C:\ProgramData\Synaptics\Synaptics.exe
  "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2744
- - C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
    "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe" InjUpdate
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2716

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /automation -Embedding
1⤵
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:2684

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

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

C:\ProgramData\Synaptics\Synaptics.exe

Filesize
821KB

MD5
d52ad01a5c9190d57300102c195db59d

SHA1
6864be60323c8db158b2e5f64cd37bd7df8c39ec

SHA256
f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea

SHA512
d6b1fe3937c4613e84e95f2102217946ed5f4beb56d5b6d2b9ad27314160c80659583bab189856196142a70cba3985b036186798722d794f19d7172afd6649d1

Download Submit
C:\Users\Admin\AppData\Local\Temp\VoKy9JTe.xlsm

Filesize
17KB

MD5
e566fc53051035e1e6fd0ed1823de0f9

SHA1
00bc96c48b98676ecd67e81a6f1d7754e4156044

SHA256
8e574b4ae6502230c0829e2319a6c146aebd51b7008bf5bbfb731424d7952c15

SHA512
a12f56ff30ea35381c2b8f8af2446cf1daa21ee872e98cad4b863db060acd4c33c5760918c277dadb7a490cb4ca2f925d59c70dc5171e16601a11bc4a6542b04

Download Submit
C:\Users\Admin\AppData\Local\Temp\VoKy9JTe.xlsm

Filesize
21KB

MD5
deb56bbe9c063f02e3ef9a6228923c09

SHA1
6e7c3a2dc86b9c78708231e7d7356f7f48042b5f

SHA256
ab994b290d4cb5a1a4bef26dd4e5d5ca18b1c4b0fdf59ce9ed7473a63826def9

SHA512
9c57a26627f923f1f4b7967179bced8783e08290fe20a7c9bf78d9e1c209dbb8cb2dcef275074fdb464b7cbd238642f850505f43e1206076de7c17e9d0dbea5f

Download Submit
C:\Users\Admin\AppData\Local\Temp\VoKy9JTe.xlsm

Filesize
23KB

MD5
0921871cc15651603c8b122ffb6250ec

SHA1
3eea6e62a5bdfb2c269cd0e3b7f1fc674068d045

SHA256
d42c8ba73830dc625b485bdd5d5646c4e3aeead1e75666b14eef8ca093ef4104

SHA512
5deafcc13dc2e8e719a61ad2037a4c2940622c64534b1204dfcc35066c509d97d94d804956cf54fca5c64b2b553e01252b631d0d75a69840340aca4e881e7ea2

Download Submit
C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf

Filesize
8B

MD5
cf759e4c5f14fe3eec41b87ed756cea8

SHA1
c27c796bb3c2fac929359563676f4ba1ffada1f5

SHA256
c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

SHA512
c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

Download Submit
\Users\Admin\AppData\Local\Temp\._cache_f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe

Filesize
74KB

MD5
32b65e6e0e6112b5dae6b43f214c28f6

SHA1
8c268ab559f6cce631c9da6949cc7c2d4abced08

SHA256
296674e268379a496e66b4e571881c32e75e46e661aa7247405201a126a782c6

SHA512
c670f08f60bf3934817f842539a2dc3534c2503234892f4ec3d4809e4ab88624810dbca7c31002d5c2c900145d7fe5db7727746268bdcefd36a893cf11606a07

Download Submit
memory/2448-0-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2448-25-0x0000000000400000-0x00000000004D3000-memory.dmp

Filesize
844KB

Download
memory/2684-39-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2716-37-0x0000000000F70000-0x0000000000F88000-memory.dmp

Filesize
96KB

Download
memory/2744-95-0x0000000000400000-0x00000000004D3000-memory.dmp

Filesize
844KB

Download
memory/2744-96-0x0000000000400000-0x00000000004D3000-memory.dmp

Filesize
844KB

Download
memory/2744-102-0x0000000000400000-0x00000000004D3000-memory.dmp

Filesize
844KB

Download
memory/2744-127-0x0000000000400000-0x00000000004D3000-memory.dmp

Filesize
844KB

Download
memory/2992-28-0x0000000001360000-0x0000000001378000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads