62cd7b447bdee3ec1670c92d9585e1fddbaa5d4ee824dee8f15940005bf95414

General

Target

tmp.exe
Size

3.2MB
MD5

4204b9d4c4df5c4b4d67922db24f342a
SHA1

9255b5e94028f3f55adda2576d60bd39452eaf08
SHA256

62cd7b447bdee3ec1670c92d9585e1fddbaa5d4ee824dee8f15940005bf95414
SHA512

0b4ed4d6397c9f34cf2c72d9c581a6e5d94eabf395da0010073b1600883dac6fcc48c1606ffee29952bd60707caf03b8a6d6cf644b2ac668306b4a418d726423
SSDEEP

49152:l/Ki16IscOcmroPBql2IzydQgfTzTGKr6d61YryTz3onQqHlfBrfgOtat:Ujpreg7zyWsFGd61QYoHBroO4t

Score

10^/10

evasion themida trojan

Malware Config

Signatures

Modifies firewall policy service 2 TTPs 1 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Processes:

tmp.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\FirewallRules\C:\ = "1"	tmp.exe

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

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

tmp.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ tmp.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	tmp.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

Processes:

tmp.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	tmp.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	tmp.exe

Themida packer 9 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/2828-0-0x000000013FA10000-0x0000000140471000-memory.dmp	themida
behavioral1/memory/2828-6-0x000000013FA10000-0x0000000140471000-memory.dmp	themida
behavioral1/memory/2828-7-0x000000013FA10000-0x0000000140471000-memory.dmp	themida
behavioral1/memory/2828-8-0x000000013FA10000-0x0000000140471000-memory.dmp	themida
behavioral1/memory/2828-9-0x000000013FA10000-0x0000000140471000-memory.dmp	themida
behavioral1/memory/2828-10-0x000000013FA10000-0x0000000140471000-memory.dmp	themida
behavioral1/memory/2828-12-0x000000013FA10000-0x0000000140471000-memory.dmp	themida
behavioral1/memory/2828-11-0x000000013FA10000-0x0000000140471000-memory.dmp	themida
behavioral1/memory/2828-57-0x000000013FA10000-0x0000000140471000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

tmp.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA tmp.exe
Looks up external IP address via web service 4 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

9 ipinfo.io
4 api.myip.com
5 api.myip.com
8 ipinfo.io

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

flow	ioc
9	ipinfo.io
4	api.myip.com
5	api.myip.com
8	ipinfo.io

Drops file in System32 directory 4 IoCs

Processes:

tmp.exe

description	ioc	process
File created	C:\Windows\System32\GroupPolicy\Machine\Registry.pol	tmp.exe
File opened for modification	C:\Windows\System32\GroupPolicy\GPT.INI	tmp.exe
File opened for modification	C:\Windows\System32\GroupPolicy	tmp.exe
File opened for modification	C:\Windows\System32\GroupPolicy\gpt.ini	tmp.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

tmp.exe

pid process

2828 tmp.exe

pid	process
2828	tmp.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Modifies firewall policy service
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:2828

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Modify Registry

1

T1112

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

Virtualization/Sandbox Evasion

1

T1497

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
Filesize
68KB

MD5
29f65ba8e88c063813cc50a4ea544e93

SHA1
05a7040d5c127e68c25d81cc51271ffb8bef3568

SHA256
1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

SHA512
e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar8731.tmp
Filesize
177KB

MD5
435a9ac180383f9fa094131b173a2f7b

SHA1
76944ea657a9db94f9a4bef38f88c46ed4166983

SHA256
67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

SHA512
1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

Download Submit
memory/2828-8-0x000000013FA10000-0x0000000140471000-memory.dmp

Filesize
10.4MB

Download
memory/2828-12-0x000000013FA10000-0x0000000140471000-memory.dmp

Filesize
10.4MB

Download
memory/2828-4-0x000007FE80010000-0x000007FE80011000-memory.dmp

Filesize
4KB

Download
memory/2828-5-0x00000000774C0000-0x0000000077669000-memory.dmp

Filesize
1.7MB

Download
memory/2828-6-0x000000013FA10000-0x0000000140471000-memory.dmp

Filesize
10.4MB

Download
memory/2828-7-0x000000013FA10000-0x0000000140471000-memory.dmp

Filesize
10.4MB

Download
memory/2828-2-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/2828-9-0x000000013FA10000-0x0000000140471000-memory.dmp

Filesize
10.4MB

Download
memory/2828-10-0x000000013FA10000-0x0000000140471000-memory.dmp

Filesize
10.4MB

Download
memory/2828-3-0x000007FEFD490000-0x000007FEFD4FC000-memory.dmp

Filesize
432KB

Download
memory/2828-11-0x000000013FA10000-0x0000000140471000-memory.dmp

Filesize
10.4MB

Download
memory/2828-0-0x000000013FA10000-0x0000000140471000-memory.dmp

Filesize
10.4MB

Download
memory/2828-1-0x000007FEFD490000-0x000007FEFD4FC000-memory.dmp

Filesize
432KB

Download
memory/2828-57-0x000000013FA10000-0x0000000140471000-memory.dmp

Filesize
10.4MB

Download
memory/2828-58-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/2828-60-0x000007FEFD490000-0x000007FEFD4FC000-memory.dmp

Filesize
432KB

Download
memory/2828-61-0x00000000774C0000-0x0000000077669000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads