7fc83dfbbf68c440b48c87c15282e8436666fadc36ef39e8d1cae32c6eaf5bf8

General

Target

virussign.com_5bc713abe9c2bb6d40a9360666dff0e0.exe
Size

88KB
MD5

5bc713abe9c2bb6d40a9360666dff0e0
SHA1

9e61fd8c44c5e4eb94c34e61ecf413512d82d55a
SHA256

7fc83dfbbf68c440b48c87c15282e8436666fadc36ef39e8d1cae32c6eaf5bf8
SHA512

deca62b785bf38a2748e8661d53116945d25e4bf26041eb53c9e71d1cbcbe1b391cf21105c76f30df343806da44ae4d44289b3a99f8822fecc3128d6031ba71b
SSDEEP

1536:1MIPgEm56wnbkKC2ZyBJU066lwLCRVEB+nR/y8cmNrEIviCOzuajkrDl9HNSj:11PgEOng1d66jRVa+n4NmNNouukrD7HI

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 8 IoCs

flow	pid	Process
19	3008	rundll32.exe
26	3008	rundll32.exe
27	3008	rundll32.exe
28	3008	rundll32.exe
42	3008	rundll32.exe
43	3008	rundll32.exe
52	3008	rundll32.exe
70	3008	rundll32.exe

Deletes itself 1 IoCs

pid	Process
2240	ugceo.exe

Executes dropped EXE 1 IoCs

pid	Process
2240	ugceo.exe

Loads dropped DLL 1 IoCs

pid	Process
3008	rundll32.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x001900000002293b-10.dat	upx
behavioral2/memory/3008-12-0x0000000010000000-0x0000000010022000-memory.dmp	upx
behavioral2/memory/3008-13-0x0000000010000000-0x0000000010022000-memory.dmp	upx
behavioral2/memory/3008-15-0x0000000010000000-0x0000000010022000-memory.dmp	upx
behavioral2/memory/3008-17-0x0000000010000000-0x0000000010022000-memory.dmp	upx

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\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\pplrn\\qougrvzf.ogq\",crc32"	rundll32.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PHYSICALDRIVE0	rundll32.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor 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\CentralProcessor\0\ProcessorNameString	rundll32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rundll32.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1596	taskkill.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1984	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3008	rundll32.exe
3008	rundll32.exe
3008	rundll32.exe
3008	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3008	rundll32.exe
Token: SeDebugPrivilege	1596	taskkill.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3264	virussign.com_5bc713abe9c2bb6d40a9360666dff0e0.exe
2240	ugceo.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3264 wrote to memory of 624	3264	virussign.com_5bc713abe9c2bb6d40a9360666dff0e0.exe	82
PID 3264 wrote to memory of 624	3264	virussign.com_5bc713abe9c2bb6d40a9360666dff0e0.exe	82
PID 3264 wrote to memory of 624	3264	virussign.com_5bc713abe9c2bb6d40a9360666dff0e0.exe	82
PID 624 wrote to memory of 1984	624	cmd.exe	84
PID 624 wrote to memory of 1984	624	cmd.exe	84
PID 624 wrote to memory of 1984	624	cmd.exe	84
PID 624 wrote to memory of 2240	624	cmd.exe	88
PID 624 wrote to memory of 2240	624	cmd.exe	88
PID 624 wrote to memory of 2240	624	cmd.exe	88
PID 2240 wrote to memory of 3008	2240	ugceo.exe	89
PID 2240 wrote to memory of 3008	2240	ugceo.exe	89
PID 2240 wrote to memory of 3008	2240	ugceo.exe	89
PID 3008 wrote to memory of 1596	3008	rundll32.exe	90
PID 3008 wrote to memory of 1596	3008	rundll32.exe	90
PID 3008 wrote to memory of 1596	3008	rundll32.exe	90

C:\Users\Admin\AppData\Local\Temp\virussign.com_5bc713abe9c2bb6d40a9360666dff0e0.exe
"C:\Users\Admin\AppData\Local\Temp\virussign.com_5bc713abe9c2bb6d40a9360666dff0e0.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3264
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\ugceo.exe "C:\Users\Admin\AppData\Local\Temp\virussign.com_5bc713abe9c2bb6d40a9360666dff0e0.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:624
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - Runs ping.exe
    PID:1984
- - C:\Users\Admin\AppData\Local\Temp\ugceo.exe
    C:\Users\Admin\AppData\Local\Temp\\ugceo.exe "C:\Users\Admin\AppData\Local\Temp\virussign.com_5bc713abe9c2bb6d40a9360666dff0e0.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2240
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\pplrn\qougrvzf.ogq",crc32 C:\Users\Admin\AppData\Local\Temp\ugceo.exe
      4⤵
      Blocklisted process makes network request
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:3008
    - - \??\c:\windows\SysWOW64\taskkill.exe
        
        taskkill /f /im attrib.exe
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:1596

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\ugceo.exe

Filesize
88KB

MD5
d52c3f8154f4c2476c8425173920c7c7

SHA1
18697f840f1716a28c0381398aa96be143c016c5

SHA256
3978ed515e771cc2ea8093aba905140e4a471f911f122cfb98fb9b9ba13564a7

SHA512
0bf983f6a68cd807858c8acc678e5d8bb7a3c5310f151ec1fc0f6502766cae874b493f4c34bf8f60fe5647d2c89526e6963159779fb5c6a04c93e5d795f6f46f

Download Submit
\??\c:\pplrn\qougrvzf.ogq

Filesize
57KB

MD5
2f53f49e01f09d6e6064871eec1955cd

SHA1
a6e1a6e5c2080d0fb2f7a872e3902a8a4a1a9b5f

SHA256
964e4dd2532d540bb61d3c7ccc833f2358d8cd6b2eabc3a2d51183a18b59f82d

SHA512
2cb98030c3df7417c04f796f78f23f96d381871d9c7ae4a14116764e915b2e2f56b9b3a6fb76fedc50a17788de9538fc7954a7b73bf17e4be43e1fc1a06bc218

Download Submit
memory/2240-7-0x00000000005B0000-0x00000000005E2000-memory.dmp

Filesize
200KB

Download
memory/2240-9-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3008-12-0x0000000010000000-0x0000000010022000-memory.dmp

Filesize
136KB

Download
memory/3008-13-0x0000000010000000-0x0000000010022000-memory.dmp

Filesize
136KB

Download
memory/3008-15-0x0000000010000000-0x0000000010022000-memory.dmp

Filesize
136KB

Download
memory/3008-17-0x0000000010000000-0x0000000010022000-memory.dmp

Filesize
136KB

Download
memory/3264-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3264-1-0x0000000000B80000-0x0000000000B81000-memory.dmp

Filesize
4KB

Download
memory/3264-3-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads