3e8c5179ca686222a014f4d1f8803fc986292db01e83f9aae1a05d0c233e42c0

General

Target

3e8c5179ca686222a014f4d1f8803fc986292db01e83f9aae1a05d0c233e42c0.exe
Size

3.4MB
MD5

0fdd88a8bdbce3e666baa64eb8d3f93f
SHA1

1de9d8b10439a81f779c8dd0a99827253d1e6881
SHA256

3e8c5179ca686222a014f4d1f8803fc986292db01e83f9aae1a05d0c233e42c0
SHA512

5132a38bb097bc9ba01b59ffd06544ef11f1c0dcc75d94d62deac9c1f1cc4c03a2c5485006a11e9021b10ff9269e5490c80bcf3b1663093c1537b9bb2baa75cb
SSDEEP

98304:HB/hPovhl+YHt0DJSZtAzc/K9gMus7RfRwUIq8DuznQ6:HzQm6EJzxl7RJwk8DuznQ6

Score

9^/10

discovery evasion trojan upx

Malware Config

Signatures

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

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	PackagesSoftwareDistribution-type8.3.8.1.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	PackagesSoftwareDistribution-type8.3.8.1.exe

Checks BIOS information in registry 2 TTPs 4 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\SystemBiosVersion	PackagesSoftwareDistribution-type8.3.8.1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	PackagesSoftwareDistribution-type8.3.8.1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	PackagesSoftwareDistribution-type8.3.8.1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	PackagesSoftwareDistribution-type8.3.8.1.exe

Executes dropped EXE 2 IoCs

pid	Process
1948	PackagesSoftwareDistribution-type8.3.8.1.exe
544	PackagesSoftwareDistribution-type8.3.8.1.exe

Modifies file permissions 1 TTPs 3 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1252	icacls.exe
4968	icacls.exe
4828	icacls.exe

UPX packed file 11 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/files/0x0007000000023141-148.dat	upx
behavioral1/files/0x0007000000023141-151.dat	upx
behavioral1/files/0x0007000000023141-150.dat	upx
behavioral1/memory/1948-153-0x00007FF605980000-0x00007FF605E9F000-memory.dmp	upx
behavioral1/memory/1948-154-0x00007FF605980000-0x00007FF605E9F000-memory.dmp	upx
behavioral1/memory/1948-155-0x00007FF605980000-0x00007FF605E9F000-memory.dmp	upx
behavioral1/memory/1948-156-0x00007FF605980000-0x00007FF605E9F000-memory.dmp	upx
behavioral1/files/0x0007000000023141-157.dat	upx
behavioral1/memory/544-158-0x00007FF605980000-0x00007FF605E9F000-memory.dmp	upx
behavioral1/memory/544-159-0x00007FF605980000-0x00007FF605E9F000-memory.dmp	upx
behavioral1/memory/544-160-0x00007FF605980000-0x00007FF605E9F000-memory.dmp	upx

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	PackagesSoftwareDistribution-type8.3.8.1.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	PackagesSoftwareDistribution-type8.3.8.1.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4420 set thread context of 2888	4420	3e8c5179ca686222a014f4d1f8803fc986292db01e83f9aae1a05d0c233e42c0.exe	87

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2924	4420	WerFault.exe	85

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
1692	schtasks.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4420 wrote to memory of 2888	4420	3e8c5179ca686222a014f4d1f8803fc986292db01e83f9aae1a05d0c233e42c0.exe	87
PID 4420 wrote to memory of 2888	4420	3e8c5179ca686222a014f4d1f8803fc986292db01e83f9aae1a05d0c233e42c0.exe	87
PID 4420 wrote to memory of 2888	4420	3e8c5179ca686222a014f4d1f8803fc986292db01e83f9aae1a05d0c233e42c0.exe	87
PID 4420 wrote to memory of 2888	4420	3e8c5179ca686222a014f4d1f8803fc986292db01e83f9aae1a05d0c233e42c0.exe	87
PID 4420 wrote to memory of 2888	4420	3e8c5179ca686222a014f4d1f8803fc986292db01e83f9aae1a05d0c233e42c0.exe	87
PID 2888 wrote to memory of 1252	2888	AppLaunch.exe	96
PID 2888 wrote to memory of 1252	2888	AppLaunch.exe	96
PID 2888 wrote to memory of 1252	2888	AppLaunch.exe	96
PID 2888 wrote to memory of 4968	2888	AppLaunch.exe	98
PID 2888 wrote to memory of 4968	2888	AppLaunch.exe	98
PID 2888 wrote to memory of 4968	2888	AppLaunch.exe	98
PID 2888 wrote to memory of 4828	2888	AppLaunch.exe	99
PID 2888 wrote to memory of 4828	2888	AppLaunch.exe	99
PID 2888 wrote to memory of 4828	2888	AppLaunch.exe	99
PID 2888 wrote to memory of 1692	2888	AppLaunch.exe	102
PID 2888 wrote to memory of 1692	2888	AppLaunch.exe	102
PID 2888 wrote to memory of 1692	2888	AppLaunch.exe	102
PID 2888 wrote to memory of 1948	2888	AppLaunch.exe	104
PID 2888 wrote to memory of 1948	2888	AppLaunch.exe	104

C:\Users\Admin\AppData\Local\Temp\3e8c5179ca686222a014f4d1f8803fc986292db01e83f9aae1a05d0c233e42c0.exe
"C:\Users\Admin\AppData\Local\Temp\3e8c5179ca686222a014f4d1f8803fc986292db01e83f9aae1a05d0c233e42c0.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4420
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  "C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\AppLaunch.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2888
- - C:\Windows\SysWOW64\icacls.exe
    "C:\Windows\System32\icacls.exe" "C:\ProgramData\PackagesSoftwareDistribution-type8.3.8.1" /inheritance:e /deny "*S-1-1-0:(R,REA,RA,RD)"
    3⤵
    - Modifies file permissions
    PID:1252
- - C:\Windows\SysWOW64\icacls.exe
    "C:\Windows\System32\icacls.exe" "C:\ProgramData\PackagesSoftwareDistribution-type8.3.8.1" /inheritance:e /deny "*S-1-5-7:(R,REA,RA,RD)"
    3⤵
    - Modifies file permissions
    PID:4968
- - C:\Windows\SysWOW64\icacls.exe
    "C:\Windows\System32\icacls.exe" "C:\ProgramData\PackagesSoftwareDistribution-type8.3.8.1" /inheritance:e /deny "admin:(R,REA,RA,RD)"
    3⤵
    - Modifies file permissions
    PID:4828
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /CREATE /TN "PackagesSoftwareDistribution-type8.3.8.1\PackagesSoftwareDistribution-type8.3.8.1" /TR "C:\ProgramData\PackagesSoftwareDistribution-type8.3.8.1\PackagesSoftwareDistribution-type8.3.8.1.exe" /SC MINUTE
    3⤵
    - Creates scheduled task(s)
    PID:1692
- - C:\ProgramData\PackagesSoftwareDistribution-type8.3.8.1\PackagesSoftwareDistribution-type8.3.8.1.exe
    "C:\ProgramData\PackagesSoftwareDistribution-type8.3.8.1\PackagesSoftwareDistribution-type8.3.8.1.exe" "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    - Identifies VirtualBox via ACPI registry values (likely anti-VM)
    - Checks BIOS information in registry
    - Executes dropped EXE
    - Checks whether UAC is enabled
    PID:1948
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4420 -s 276
  2⤵
  - Program crash
  PID:2924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4420 -ip 4420
1⤵
PID:2284

C:\ProgramData\PackagesSoftwareDistribution-type8.3.8.1\PackagesSoftwareDistribution-type8.3.8.1.exe
C:\ProgramData\PackagesSoftwareDistribution-type8.3.8.1\PackagesSoftwareDistribution-type8.3.8.1.exe
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
PID:544

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

File and Directory Permissions Modification

1

T1222

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

Replay Monitor

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Downloads

C:\ProgramData\PackagesSoftwareDistribution-type8.3.8.1\PackagesSoftwareDistribution-type8.3.8.1.exe

Filesize
533.4MB

MD5
c0e77467b6b0e6ee935bf6d68d918c94

SHA1
4cbedcb14c82ef7fbaeb9403678b8a1d72c4e4b9

SHA256
a8da329b9b660b0952522e1978600c24b39876b20c1ee0460f98999766302fca

SHA512
03e8b480fe1a78cf297ec42a71e98369c24a8aa17913acabba16cfba7cc987852230e1362433d496fe1bace65d3971fcdaf421c5a00f43b02b1d0d83c09f1267

Download Submit
C:\ProgramData\PackagesSoftwareDistribution-type8.3.8.1\PackagesSoftwareDistribution-type8.3.8.1.exe

Filesize
488.8MB

MD5
223b8a8fec7982be5e65a47d351023bb

SHA1
f3c4589ac27271e83d41fac68f27ec0e5300e2d9

SHA256
38c1a5765be8f79b81bd758a015d9661f83708069a0aa8a686f55861168f57d8

SHA512
6505afbc9924e58f27427604463cd8718d6f6ef55e201ebb71093137191e2a23735d1933e8dd7d022888c220f40997365f4aeed5c944c383f310c67432a9895e

Download Submit
C:\ProgramData\PackagesSoftwareDistribution-type8.3.8.1\PackagesSoftwareDistribution-type8.3.8.1.exe

Filesize
499.2MB

MD5
ec84d2d9e6d7d5dd17d16d82731e24b1

SHA1
00560d0f405992e60a74e584e349a7be40acaf34

SHA256
0435b4c009178d8cf8005d56a208ac3df00ef784c38c429187dcef8d0d8e491c

SHA512
40937882919faf6ac3bda69bbf10f8d92b7c3b884ab801928ded83a3b1c8e2589994a137645eb66fe152f947da30611325219647f22674cfcc820b27b61e2597

Download Submit
C:\ProgramData\PackagesSoftwareDistribution-type8.3.8.1\PackagesSoftwareDistribution-type8.3.8.1.exe

Filesize
347.0MB

MD5
b3cd4eb7178f423413b83d1d01916595

SHA1
73a4f5714475bc2eaf3e44d25c65aacbaa4ee421

SHA256
75d635bfea866b445cb9dbac006fccaf1a9f2b6a6626ae742fb61ff63d789673

SHA512
ed3d57a974eb3b416f4860f01a34656874a61cc366c7890687f2c616727ea8ecc72b4f6d8db92aae9ffec6a4202cf1d39caba3dce31e9a435d41bd6ff0ed6fe1

Download Submit
memory/544-160-0x00007FF605980000-0x00007FF605E9F000-memory.dmp

Filesize
5.1MB

Download
memory/544-159-0x00007FF605980000-0x00007FF605E9F000-memory.dmp

Filesize
5.1MB

Download
memory/544-158-0x00007FF605980000-0x00007FF605E9F000-memory.dmp

Filesize
5.1MB

Download
memory/1948-155-0x00007FF605980000-0x00007FF605E9F000-memory.dmp

Filesize
5.1MB

Download
memory/1948-153-0x00007FF605980000-0x00007FF605E9F000-memory.dmp

Filesize
5.1MB

Download
memory/1948-154-0x00007FF605980000-0x00007FF605E9F000-memory.dmp

Filesize
5.1MB

Download
memory/1948-156-0x00007FF605980000-0x00007FF605E9F000-memory.dmp

Filesize
5.1MB

Download
memory/2888-143-0x0000000005A50000-0x0000000005A60000-memory.dmp

Filesize
64KB

Download
memory/2888-142-0x0000000005A50000-0x0000000005A60000-memory.dmp

Filesize
64KB

Download
memory/2888-133-0x0000000000400000-0x000000000075C000-memory.dmp

Filesize
3.4MB

Download
memory/2888-141-0x0000000005A50000-0x0000000005A60000-memory.dmp

Filesize
64KB

Download
memory/2888-140-0x00000000057E0000-0x00000000057EA000-memory.dmp

Filesize
40KB

Download
memory/2888-139-0x0000000005800000-0x0000000005892000-memory.dmp

Filesize
584KB

Download
memory/2888-138-0x0000000005D10000-0x00000000062B4000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads