3f36ef0f5232d3b7106186b51c7f68cff06305ff15ae8c516b63fa125cd052e1

General

Target

3f36ef0f5232d3b7106186b51c7f68cff06305ff15ae8c516b63fa125cd052e1.exe
Size

406KB
MD5

f0dd41313bd4d1f339800898c5fb9c54
SHA1

d9857cf7ba2478c1c9cec7f6fe6beb2fe048b4b3
SHA256

3f36ef0f5232d3b7106186b51c7f68cff06305ff15ae8c516b63fa125cd052e1
SHA512

749fd1c9e6ea144a4002fb879baa87ccf2bdca4889eeabf1f582191c46679070c231acdb9b7ab1c24c824790c65e0e9a8bfc0ccbf4c54654c7f12cbc48093469
SSDEEP

12288:vdDU6g13sJd1fm/+yb3O2jg82ydU/DdKumy:vdE3sJd1fm/+yb3OYg84/JHJ

Score

9^/10

Malware Config

Signatures

Detects executables containing base64 encoded User Agent 3 IoCs

resource	yara_rule
behavioral1/memory/2012-19-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/2012-23-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/2012-24-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 7 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012252-1.dat	UPX
behavioral1/files/0x0028000000015e09-11.dat	UPX
behavioral1/memory/2012-15-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral1/memory/2012-18-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral1/memory/2012-19-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral1/memory/2012-23-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral1/memory/2012-24-0x0000000010000000-0x0000000010033000-memory.dmp	UPX

Deletes itself 1 IoCs

pid	Process
2136	qknah.exe

Executes dropped EXE 2 IoCs

pid	Process
2136	qknah.exe
2012	ikmuva.exe

Loads dropped DLL 7 IoCs

pid	Process
2732	cmd.exe
2732	cmd.exe
2136	qknah.exe
2012	ikmuva.exe
2012	ikmuva.exe
2012	ikmuva.exe
2012	ikmuva.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

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-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Run\VIEW = "c:\\Program Files\\mrtannz\\ikmuva.exe \"c:\\Program Files\\mrtannz\\ikmuva.dll\",Viewer"	ikmuva.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)	\??\y:	ikmuva.exe
File opened (read-only)	\??\e:	ikmuva.exe
File opened (read-only)	\??\j:	ikmuva.exe
File opened (read-only)	\??\m:	ikmuva.exe
File opened (read-only)	\??\n:	ikmuva.exe
File opened (read-only)	\??\o:	ikmuva.exe
File opened (read-only)	\??\u:	ikmuva.exe
File opened (read-only)	\??\v:	ikmuva.exe
File opened (read-only)	\??\z:	ikmuva.exe
File opened (read-only)	\??\a:	ikmuva.exe
File opened (read-only)	\??\i:	ikmuva.exe
File opened (read-only)	\??\l:	ikmuva.exe
File opened (read-only)	\??\h:	ikmuva.exe
File opened (read-only)	\??\k:	ikmuva.exe
File opened (read-only)	\??\q:	ikmuva.exe
File opened (read-only)	\??\r:	ikmuva.exe
File opened (read-only)	\??\s:	ikmuva.exe
File opened (read-only)	\??\t:	ikmuva.exe
File opened (read-only)	\??\x:	ikmuva.exe
File opened (read-only)	\??\b:	ikmuva.exe
File opened (read-only)	\??\g:	ikmuva.exe
File opened (read-only)	\??\p:	ikmuva.exe
File opened (read-only)	\??\w:	ikmuva.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	ikmuva.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File created	\??\c:\Program Files\mrtannz\ikmuva.exe	qknah.exe
File opened for modification	\??\c:\Program Files\mrtannz\ikmuva.exe	qknah.exe
File opened for modification	\??\c:\Program Files\mrtannz	qknah.exe
File created	\??\c:\Program Files\mrtannz\ikmuva.dll	qknah.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	ikmuva.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	ikmuva.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2216	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2012	ikmuva.exe
2012	ikmuva.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2012	ikmuva.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2416	3f36ef0f5232d3b7106186b51c7f68cff06305ff15ae8c516b63fa125cd052e1.exe
2136	qknah.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2416 wrote to memory of 2732	2416	3f36ef0f5232d3b7106186b51c7f68cff06305ff15ae8c516b63fa125cd052e1.exe	28
PID 2416 wrote to memory of 2732	2416	3f36ef0f5232d3b7106186b51c7f68cff06305ff15ae8c516b63fa125cd052e1.exe	28
PID 2416 wrote to memory of 2732	2416	3f36ef0f5232d3b7106186b51c7f68cff06305ff15ae8c516b63fa125cd052e1.exe	28
PID 2416 wrote to memory of 2732	2416	3f36ef0f5232d3b7106186b51c7f68cff06305ff15ae8c516b63fa125cd052e1.exe	28
PID 2732 wrote to memory of 2216	2732	cmd.exe	30
PID 2732 wrote to memory of 2216	2732	cmd.exe	30
PID 2732 wrote to memory of 2216	2732	cmd.exe	30
PID 2732 wrote to memory of 2216	2732	cmd.exe	30
PID 2732 wrote to memory of 2136	2732	cmd.exe	31
PID 2732 wrote to memory of 2136	2732	cmd.exe	31
PID 2732 wrote to memory of 2136	2732	cmd.exe	31
PID 2732 wrote to memory of 2136	2732	cmd.exe	31
PID 2136 wrote to memory of 2012	2136	qknah.exe	32
PID 2136 wrote to memory of 2012	2136	qknah.exe	32
PID 2136 wrote to memory of 2012	2136	qknah.exe	32
PID 2136 wrote to memory of 2012	2136	qknah.exe	32

C:\Users\Admin\AppData\Local\Temp\3f36ef0f5232d3b7106186b51c7f68cff06305ff15ae8c516b63fa125cd052e1.exe
"C:\Users\Admin\AppData\Local\Temp\3f36ef0f5232d3b7106186b51c7f68cff06305ff15ae8c516b63fa125cd052e1.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2416
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\qknah.exe "C:\Users\Admin\AppData\Local\Temp\3f36ef0f5232d3b7106186b51c7f68cff06305ff15ae8c516b63fa125cd052e1.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2732
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - Runs ping.exe
    PID:2216
- - C:\Users\Admin\AppData\Local\Temp\qknah.exe
    C:\Users\Admin\AppData\Local\Temp\\qknah.exe "C:\Users\Admin\AppData\Local\Temp\3f36ef0f5232d3b7106186b51c7f68cff06305ff15ae8c516b63fa125cd052e1.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Loads dropped DLL
    - Drops file in Program Files directory
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2136
  - - \??\c:\Program Files\mrtannz\ikmuva.exe
      "c:\Program Files\mrtannz\ikmuva.exe" "c:\Program Files\mrtannz\ikmuva.dll",Viewer C:\Users\Admin\AppData\Local\Temp\qknah.exe
      4⤵
      Executes dropped EXE
      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
      PID:2012

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:\Program Files\mrtannz\ikmuva.dll

Filesize
89KB

MD5
daadeac4233081c33c3c1138c6b3e394

SHA1
f10396021ac218049b2fc84dca8b072133e7339f

SHA256
1a5079bc0b3e226a9852d313aff05a5b0bab6fc92a70592f63382e7c251e3ff3

SHA512
2c4149694340fa459bd6cbe222b8d96d5f22e4d7440f74af07617aa5762e707a0c2c36fde50a29d3e91259979ccf810bbcbc1e268c8726eff90f63ca7ce73d53

Download Submit
\Program Files\mrtannz\ikmuva.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
\Users\Admin\AppData\Local\Temp\qknah.exe

Filesize
406KB

MD5
6b5acc7f4bdf0a15e33a7cade9bb92e9

SHA1
0cc70f7ced83f5ccaf15496f9ec1bb88834c31fb

SHA256
9db30b4445fffb5bbca53eb96b29b3209d7c0e838582c8cff4cdbd15fa314575

SHA512
36ceda24aa9e8829619c28cbe8108a2e85fa430f1577bbd71c5867b80a519969db5696db505bed7a7e1a85cb34ff83bad7f2874358aa6768ce218e48fda72a13

Download Submit
memory/2012-15-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2012-18-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2012-19-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2012-23-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2012-24-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads