ec8f69ee8dbd4c4459b4a0637fad690872eb4713b3e39de0393781801ece4ed3

General

Target

yterhbrtyhFf7Wn29q.exe
Size

3.0MB
MD5

ecec5de0ceef1e2b0214239b18422203
SHA1

1ea4157db986fbc9e23a43c9c96537437c81c7f4
SHA256

7682dd1bd7e096f9c2d4c3f75548847b77bf02429f3d761c7aa3d8a8c8791a35
SHA512

78dc546b5914970081d0558f6452391c0416ead102f18ff256759e34935c0133c1dceff32748d11215bf953b7168122b3b0aa8049e2d8b8d7d26cb15054c3adb
SSDEEP

49152:W7J6s2SAX1fiSIOmFa3xj9zN5r0aNcRWTdg29Jn00oaTq+7Ltwxox/SHVy:K8SaiSxawxj9rwaaMTdg2nnDosU25

Score

9^/10

evasion themida 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	yterhbrtyhFf7Wn29q.exe

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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	yterhbrtyhFf7Wn29q.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	yterhbrtyhFf7Wn29q.exe

Themida packer 2 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral2/memory/2276-134-0x0000000000CB0000-0x00000000014C4000-memory.dmp	themida
behavioral2/memory/2276-135-0x0000000000CB0000-0x00000000014C4000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	yterhbrtyhFf7Wn29q.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2276	yterhbrtyhFf7Wn29q.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2276	yterhbrtyhFf7Wn29q.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2988	powershell.exe
2988	powershell.exe
4736	powershell.exe
4736	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2988	powershell.exe
Token: SeDebugPrivilege	4736	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2276 wrote to memory of 2988	2276	yterhbrtyhFf7Wn29q.exe	82
PID 2276 wrote to memory of 2988	2276	yterhbrtyhFf7Wn29q.exe	82
PID 2276 wrote to memory of 2988	2276	yterhbrtyhFf7Wn29q.exe	82
PID 2276 wrote to memory of 4736	2276	yterhbrtyhFf7Wn29q.exe	84
PID 2276 wrote to memory of 4736	2276	yterhbrtyhFf7Wn29q.exe	84
PID 2276 wrote to memory of 4736	2276	yterhbrtyhFf7Wn29q.exe	84

C:\Users\Admin\AppData\Local\Temp\yterhbrtyhFf7Wn29q.exe
"C:\Users\Admin\AppData\Local\Temp\yterhbrtyhFf7Wn29q.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of WriteProcessMemory
PID:2276
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" [bool](([System.Security.Principal.WindowsIdentity]::GetCurrent()).groups -match 'S-1-5-32-544')
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2988
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\chome_exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4736

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
1KB

MD5
33b19d75aa77114216dbc23f43b195e3

SHA1
36a6c3975e619e0c5232aa4f5b7dc1fec9525535

SHA256
b23ced31b855e5a39c94afa1f9d55b023b8c40d4dc62143e0539c6916c12c9d2

SHA512
676fa2fd34878b75e5899197fe6826bb5604541aa468804bc9835bd3acabed2e6759878a8f1358955413818a51456816e90f149133828575a416c2a74fc7d821

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
12KB

MD5
fc369d4ac195fa4c8ce2ec786263780b

SHA1
f2a20a87bf8f107332daae223b34a9f91e935d01

SHA256
d38967e4d410160153651c8a9e327f0986603f48ab54b8c360e6a0981d57ca6d

SHA512
c6d7ef05d4bfdc045b86ea4d734c4251632aa73224596d9b156fe2511d322824550df81993b88e596d59be75a930ccd72e1cf3e08dde0e8265162081319192b5

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C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3umoxltz.b0f.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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memory/2276-134-0x0000000000CB0000-0x00000000014C4000-memory.dmp

Filesize
8.1MB

Download
memory/2276-135-0x0000000000CB0000-0x00000000014C4000-memory.dmp

Filesize
8.1MB

Download
memory/2276-136-0x0000000005DC0000-0x0000000006364000-memory.dmp

Filesize
5.6MB

Download
memory/2276-137-0x00000000058F0000-0x0000000005982000-memory.dmp

Filesize
584KB

Download
memory/2276-191-0x0000000000CB0000-0x00000000014C4000-memory.dmp

Filesize
8.1MB

Download
memory/2276-194-0x0000000005AD0000-0x0000000005ADA000-memory.dmp

Filesize
40KB

Download
memory/2276-195-0x0000000005B30000-0x0000000005B40000-memory.dmp

Filesize
64KB

Download
memory/2276-197-0x0000000005B30000-0x0000000005B40000-memory.dmp

Filesize
64KB

Download
memory/2276-133-0x0000000000CB0000-0x00000000014C4000-memory.dmp

Filesize
8.1MB

Download
memory/2988-138-0x0000000002480000-0x00000000024B6000-memory.dmp

Filesize
216KB

Download
memory/2988-154-0x0000000005DA0000-0x0000000005DBE000-memory.dmp

Filesize
120KB

Download
memory/2988-144-0x00000000057A0000-0x0000000005806000-memory.dmp

Filesize
408KB

Download
memory/2988-143-0x0000000005730000-0x0000000005796000-memory.dmp

Filesize
408KB

Download
memory/2988-142-0x0000000004F10000-0x0000000004F32000-memory.dmp

Filesize
136KB

Download
memory/2988-141-0x0000000004A50000-0x0000000004A60000-memory.dmp

Filesize
64KB

Download
memory/2988-140-0x0000000004A50000-0x0000000004A60000-memory.dmp

Filesize
64KB

Download
memory/2988-139-0x0000000005090000-0x00000000056B8000-memory.dmp

Filesize
6.2MB

Download
memory/4736-168-0x0000000002800000-0x0000000002810000-memory.dmp

Filesize
64KB

Download
memory/4736-182-0x00000000072B0000-0x00000000072CE000-memory.dmp

Filesize
120KB

Download
memory/4736-183-0x0000000007B10000-0x000000000818A000-memory.dmp

Filesize
6.5MB

Download
memory/4736-184-0x00000000073A0000-0x00000000073BA000-memory.dmp

Filesize
104KB

Download
memory/4736-185-0x000000007F520000-0x000000007F530000-memory.dmp

Filesize
64KB

Download
memory/4736-186-0x00000000074C0000-0x00000000074CA000-memory.dmp

Filesize
40KB

Download
memory/4736-187-0x0000000007730000-0x00000000077C6000-memory.dmp

Filesize
600KB

Download
memory/4736-188-0x0000000007690000-0x000000000769E000-memory.dmp

Filesize
56KB

Download
memory/4736-190-0x00000000076E0000-0x00000000076FA000-memory.dmp

Filesize
104KB

Download
memory/4736-172-0x0000000070570000-0x00000000705BC000-memory.dmp

Filesize
304KB

Download
memory/4736-192-0x00000000076D0000-0x00000000076D8000-memory.dmp

Filesize
32KB

Download
memory/4736-171-0x00000000072F0000-0x0000000007322000-memory.dmp

Filesize
200KB

Download
memory/4736-170-0x0000000002800000-0x0000000002810000-memory.dmp

Filesize
64KB

Download
memory/4736-169-0x0000000002800000-0x0000000002810000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads