asyncrat | f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea

Analysis

max time kernel
150s
max time network
156s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
18-08-2024 19:09

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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

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

resource	yara_rule
behavioral1/files/0x000c000000016d28-4.dat	VenomRAT
behavioral1/files/0x0009000000016d81-12.dat	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

resource	yara_rule
behavioral1/files/0x000c000000016d28-4.dat	family_asyncrat

Executes dropped EXE 3 IoCs

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

Loads dropped DLL 5 IoCs

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

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

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

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2684	EXCEL.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

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

pid	Process
2684	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2448 wrote to memory of 2992	2448	f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe	30
PID 2448 wrote to memory of 2992	2448	f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe	30
PID 2448 wrote to memory of 2992	2448	f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe	30
PID 2448 wrote to memory of 2992	2448	f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe	30
PID 2448 wrote to memory of 2744	2448	f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe	31
PID 2448 wrote to memory of 2744	2448	f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe	31
PID 2448 wrote to memory of 2744	2448	f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe	31
PID 2448 wrote to memory of 2744	2448	f8426a8416b86681c417b2025b1c09445cb2997eb34e5d4d5c63c2064e99abea.exe	31
PID 2744 wrote to memory of 2716	2744	Synaptics.exe	32
PID 2744 wrote to memory of 2716	2744	Synaptics.exe	32
PID 2744 wrote to memory of 2716	2744	Synaptics.exe	32
PID 2744 wrote to memory of 2716	2744	Synaptics.exe	32

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

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

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