93db5f4e53b9c0514b9c0c4c562be8d8e7c3d64f8542c03b7e7f032a9c5d0c55

Analysis

max time kernel
18s
max time network
45s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
14-03-2023 04:03

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General

Target

Synapse Launcher.exe
Size

788KB
MD5

20e1eb6b9b733bbd26ac8be5be603de2
SHA1

36beefc2467d94b5ec9ae843b2bb099898581bed
SHA256

73af760ad2ffdd931210079ef4b719a1a8c41a864e7d0a39faa5c1783fb140d6
SHA512

d486fc560f0f6d94428b58ae041a17053659e78c49fe9154ca9e642d692da43aeb7dd3f03b1aeb428ea398bdbdfab743960c2f0fa885cd97bc31655be2e42e0b
SSDEEP

12288:GoK0iEH0u6YNNCObkXxHDc/n3jUOSpUMh:nipzXonoOSpUMh

Score

9^/10

evasion trojan

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

eu4c5cat.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	eu4c5cat.exe

Downloads MZ/PE file

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

eu4c5cat.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	eu4c5cat.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	eu4c5cat.exe

Executes dropped EXE 2 IoCs

Processes:

rEJZ.bineu4c5cat.exe

pid	Process
3780	rEJZ.bin
1216	eu4c5cat.exe

Loads dropped DLL 1 IoCs

Processes:

eu4c5cat.exe

pid	Process
1216	eu4c5cat.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

eu4c5cat.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	eu4c5cat.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

Synapse Launcher.exerEJZ.bineu4c5cat.exe

pid	Process
3516	Synapse Launcher.exe
3780	rEJZ.bin
1216	eu4c5cat.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Synapse Launcher.exerEJZ.bineu4c5cat.exe

description	pid	Process
Token: SeDebugPrivilege	3516	Synapse Launcher.exe
Token: SeDebugPrivilege	3780	rEJZ.bin
Token: SeDebugPrivilege	1216	eu4c5cat.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

Synapse Launcher.exerEJZ.bin

description	pid	Process	procid_target
PID 3516 wrote to memory of 3780	3516	Synapse Launcher.exe	90
PID 3516 wrote to memory of 3780	3516	Synapse Launcher.exe	90
PID 3516 wrote to memory of 3780	3516	Synapse Launcher.exe	90
PID 3780 wrote to memory of 1216	3780	rEJZ.bin	91
PID 3780 wrote to memory of 1216	3780	rEJZ.bin	91
PID 3780 wrote to memory of 1216	3780	rEJZ.bin	91

C:\Users\Admin\AppData\Local\Temp\Synapse Launcher.exe
"C:\Users\Admin\AppData\Local\Temp\Synapse Launcher.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3516
- C:\Users\Admin\AppData\Local\Temp\bin\rEJZ.bin
  "bin\rEJZ.bin"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3780
- - C:\Users\Admin\AppData\Local\Temp\bin\eu4c5cat.exe
    "bin\eu4c5cat.exe"
    3⤵
    - Identifies VirtualBox via ACPI registry values (likely anti-VM)
    - Checks BIOS information in registry
    - Executes dropped EXE
    - Loads dropped DLL
    - Checks whether UAC is enabled
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1216

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\bin\SLAgent.dll

Filesize
6.0MB

MD5
9b248dfff1d2b73fd639324741fe2e08

SHA1
e82684cd6858a6712eff69ace1707b3bcd464105

SHA256
39943c30732988289ca346902f007a72124bd98b82e08b0b9739241cdab4018e

SHA512
56784a895f113088e3c92ccd96f354473e5d849fb9d0798868ff5e9477f60854e8bc7c9759c63417c9298f8702abab266722439b445977c6e940da393b8b696c

Download Submit
C:\Users\Admin\AppData\Local\Temp\bin\SLAgent.dll

Filesize
6.0MB

MD5
9b248dfff1d2b73fd639324741fe2e08

SHA1
e82684cd6858a6712eff69ace1707b3bcd464105

SHA256
39943c30732988289ca346902f007a72124bd98b82e08b0b9739241cdab4018e

SHA512
56784a895f113088e3c92ccd96f354473e5d849fb9d0798868ff5e9477f60854e8bc7c9759c63417c9298f8702abab266722439b445977c6e940da393b8b696c

Download Submit
C:\Users\Admin\AppData\Local\Temp\bin\SynapseInjector.dll

Filesize
6.0MB

MD5
9b248dfff1d2b73fd639324741fe2e08

SHA1
e82684cd6858a6712eff69ace1707b3bcd464105

SHA256
39943c30732988289ca346902f007a72124bd98b82e08b0b9739241cdab4018e

SHA512
56784a895f113088e3c92ccd96f354473e5d849fb9d0798868ff5e9477f60854e8bc7c9759c63417c9298f8702abab266722439b445977c6e940da393b8b696c

Download Submit
C:\Users\Admin\AppData\Local\Temp\bin\eu4c5cat.exe

Filesize
2.4MB

MD5
89c1ed9b8f26601e87e78e9bef226f6b

SHA1
b7a9f82784e067eee0b9649ff756a8f209f153f6

SHA256
6cc9a31f3b52a785f27b0ac6dfc2cecfbb39b2a71ce1a19247524f81095a4df2

SHA512
31a3d2c4da8d1a12780f1baf6d2302b616ff4cb0db61126d815cb1d114387c6ae58f63305ed08cba097eeab288f282b5d5cd1c1de6e80873bb061ca8ebc9c802

Download Submit
C:\Users\Admin\AppData\Local\Temp\bin\eu4c5cat.exe

Filesize
2.4MB

MD5
89c1ed9b8f26601e87e78e9bef226f6b

SHA1
b7a9f82784e067eee0b9649ff756a8f209f153f6

SHA256
6cc9a31f3b52a785f27b0ac6dfc2cecfbb39b2a71ce1a19247524f81095a4df2

SHA512
31a3d2c4da8d1a12780f1baf6d2302b616ff4cb0db61126d815cb1d114387c6ae58f63305ed08cba097eeab288f282b5d5cd1c1de6e80873bb061ca8ebc9c802

Download Submit
C:\Users\Admin\AppData\Local\Temp\bin\eu4c5cat.exe

Filesize
2.4MB

MD5
89c1ed9b8f26601e87e78e9bef226f6b

SHA1
b7a9f82784e067eee0b9649ff756a8f209f153f6

SHA256
6cc9a31f3b52a785f27b0ac6dfc2cecfbb39b2a71ce1a19247524f81095a4df2

SHA512
31a3d2c4da8d1a12780f1baf6d2302b616ff4cb0db61126d815cb1d114387c6ae58f63305ed08cba097eeab288f282b5d5cd1c1de6e80873bb061ca8ebc9c802

Download Submit
C:\Users\Admin\AppData\Local\Temp\bin\rEJZ.bin

Filesize
2.4MB

MD5
89c1ed9b8f26601e87e78e9bef226f6b

SHA1
b7a9f82784e067eee0b9649ff756a8f209f153f6

SHA256
6cc9a31f3b52a785f27b0ac6dfc2cecfbb39b2a71ce1a19247524f81095a4df2

SHA512
31a3d2c4da8d1a12780f1baf6d2302b616ff4cb0db61126d815cb1d114387c6ae58f63305ed08cba097eeab288f282b5d5cd1c1de6e80873bb061ca8ebc9c802

Download Submit
C:\Users\Admin\AppData\Local\Temp\bin\rEJZ.bin

Filesize
2.4MB

MD5
89c1ed9b8f26601e87e78e9bef226f6b

SHA1
b7a9f82784e067eee0b9649ff756a8f209f153f6

SHA256
6cc9a31f3b52a785f27b0ac6dfc2cecfbb39b2a71ce1a19247524f81095a4df2

SHA512
31a3d2c4da8d1a12780f1baf6d2302b616ff4cb0db61126d815cb1d114387c6ae58f63305ed08cba097eeab288f282b5d5cd1c1de6e80873bb061ca8ebc9c802

Download Submit
memory/1216-164-0x000000006D190000-0x000000006E0B6000-memory.dmp

Filesize
15.1MB

Download
memory/1216-169-0x000000006D190000-0x000000006E0B6000-memory.dmp

Filesize
15.1MB

Download
memory/1216-193-0x000000006D190000-0x000000006E0B6000-memory.dmp

Filesize
15.1MB

Download
memory/1216-192-0x0000000009FE0000-0x000000000A50C000-memory.dmp

Filesize
5.2MB

Download
memory/1216-191-0x000000006D190000-0x000000006E0B6000-memory.dmp

Filesize
15.1MB

Download
memory/1216-190-0x0000000004EA0000-0x0000000004EB0000-memory.dmp

Filesize
64KB

Download
memory/1216-156-0x0000000004EA0000-0x0000000004EB0000-memory.dmp

Filesize
64KB

Download
memory/1216-189-0x000000006D190000-0x000000006E0B6000-memory.dmp

Filesize
15.1MB

Download
memory/1216-158-0x000000006D190000-0x000000006E0B6000-memory.dmp

Filesize
15.1MB

Download
memory/1216-159-0x000000006D190000-0x000000006E0B6000-memory.dmp

Filesize
15.1MB

Download
memory/1216-160-0x000000006D190000-0x000000006E0B6000-memory.dmp

Filesize
15.1MB

Download
memory/1216-161-0x000000006D190000-0x000000006E0B6000-memory.dmp

Filesize
15.1MB

Download
memory/1216-162-0x000000006D190000-0x000000006E0B6000-memory.dmp

Filesize
15.1MB

Download
memory/1216-163-0x000000006D190000-0x000000006E0B6000-memory.dmp

Filesize
15.1MB

Download
memory/1216-188-0x000000006D190000-0x000000006E0B6000-memory.dmp

Filesize
15.1MB

Download
memory/1216-166-0x0000000004EA0000-0x0000000004EB0000-memory.dmp

Filesize
64KB

Download
memory/1216-165-0x000000006D190000-0x000000006E0B6000-memory.dmp

Filesize
15.1MB

Download
memory/1216-167-0x000000006D190000-0x000000006E0B6000-memory.dmp

Filesize
15.1MB

Download
memory/1216-168-0x000000006D190000-0x000000006E0B6000-memory.dmp

Filesize
15.1MB

Download
memory/1216-187-0x000000006D190000-0x000000006E0B6000-memory.dmp

Filesize
15.1MB

Download
memory/1216-170-0x000000006D190000-0x000000006E0B6000-memory.dmp

Filesize
15.1MB

Download
memory/1216-171-0x000000006D190000-0x000000006E0B6000-memory.dmp

Filesize
15.1MB

Download
memory/1216-172-0x000000006D190000-0x000000006E0B6000-memory.dmp

Filesize
15.1MB

Download
memory/1216-173-0x0000000005F10000-0x0000000005F18000-memory.dmp

Filesize
32KB

Download
memory/1216-175-0x0000000008A40000-0x0000000008A78000-memory.dmp

Filesize
224KB

Download
memory/1216-174-0x000000006D190000-0x000000006E0B6000-memory.dmp

Filesize
15.1MB

Download
memory/1216-177-0x0000000008000000-0x000000000800E000-memory.dmp

Filesize
56KB

Download
memory/1216-180-0x00000000090A0000-0x00000000090F0000-memory.dmp

Filesize
320KB

Download
memory/1216-183-0x0000000009150000-0x0000000009162000-memory.dmp

Filesize
72KB

Download
memory/1216-182-0x000000006D190000-0x000000006E0B6000-memory.dmp

Filesize
15.1MB

Download
memory/1216-184-0x000000006D190000-0x000000006E0B6000-memory.dmp

Filesize
15.1MB

Download
memory/1216-185-0x000000006D190000-0x000000006E0B6000-memory.dmp

Filesize
15.1MB

Download
memory/3516-133-0x00000000001B0000-0x000000000027A000-memory.dmp

Filesize
808KB

Download
memory/3516-134-0x00000000050C0000-0x0000000005664000-memory.dmp

Filesize
5.6MB

Download
memory/3516-135-0x0000000004BB0000-0x0000000004C42000-memory.dmp

Filesize
584KB

Download
memory/3516-136-0x0000000002660000-0x0000000002670000-memory.dmp

Filesize
64KB

Download
memory/3516-137-0x0000000007ED0000-0x0000000007EF2000-memory.dmp

Filesize
136KB

Download
memory/3780-147-0x0000000002E60000-0x0000000002E70000-memory.dmp

Filesize
64KB

Download
memory/3780-146-0x0000000000870000-0x0000000000AE4000-memory.dmp

Filesize
2.5MB

Download