35f20c8ae6e9990812b6ccf20321af32662bcf76d8c27a800f086255911bfb6b

General

Target

teur4.exe
Size

615KB
MD5

b3e46b8cbe83d0e6002173c37e8436a7
SHA1

de994b98fac3f9499ee15c3ccf859ef05db14b62
SHA256

35f20c8ae6e9990812b6ccf20321af32662bcf76d8c27a800f086255911bfb6b
SHA512

5f9a07740d76c9407160029655a9b66a50e136b63abd071c79106d2339b6951c28397f441cec7c99d968706ed7bd4e01288459bf22e0489fca646eccf0dc57f8
SSDEEP

12288:3Ui+Sybja8AwVReTD7oB++4clgVY3fYNKfPTksjUTyKJrVSo5flO9dJu:3KSybm8AaRiE+wy2PYNCQIWVd5cw

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3028	teur4.exe

Executes dropped EXE 1 IoCs

pid	Process
3028	teur4.exe

Loads dropped DLL 1 IoCs

pid	Process
2672	teur4.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2672-0-0x0000000000400000-0x000000000065C000-memory.dmp	upx
behavioral1/files/0x0005000000010300-16.dat	upx
behavioral1/memory/3028-28-0x0000000000400000-0x000000000065C000-memory.dmp	upx

Legitimate hosting services abused for malware hosting/C2 1 TTPs 1 IoCs

Web Service

T1102

flow	ioc
2	pastebin.com

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	teur4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	teur4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2944	schtasks.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2672	teur4.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2672	teur4.exe
3028	teur4.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2672 wrote to memory of 3028	2672	teur4.exe	31
PID 2672 wrote to memory of 3028	2672	teur4.exe	31
PID 2672 wrote to memory of 3028	2672	teur4.exe	31
PID 2672 wrote to memory of 3028	2672	teur4.exe	31
PID 3028 wrote to memory of 2944	3028	teur4.exe	32
PID 3028 wrote to memory of 2944	3028	teur4.exe	32
PID 3028 wrote to memory of 2944	3028	teur4.exe	32
PID 3028 wrote to memory of 2944	3028	teur4.exe	32
PID 3028 wrote to memory of 2708	3028	teur4.exe	34
PID 3028 wrote to memory of 2708	3028	teur4.exe	34
PID 3028 wrote to memory of 2708	3028	teur4.exe	34
PID 3028 wrote to memory of 2708	3028	teur4.exe	34
PID 2708 wrote to memory of 2620	2708	cmd.exe	36
PID 2708 wrote to memory of 2620	2708	cmd.exe	36
PID 2708 wrote to memory of 2620	2708	cmd.exe	36
PID 2708 wrote to memory of 2620	2708	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\teur4.exe
"C:\Users\Admin\AppData\Local\Temp\teur4.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2672
- C:\Users\Admin\AppData\Local\Temp\teur4.exe
  C:\Users\Admin\AppData\Local\Temp\teur4.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:3028
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\teur4.exe" /TN vphawsPt128a /F
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2944
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /c schtasks.exe /Query /XML /TN vphawsPt128a > C:\Users\Admin\AppData\Local\Temp\i5cJFMUSh.xml
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2708
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks.exe /Query /XML /TN vphawsPt128a
      4⤵
      System Location Discovery: System Language Discovery
      PID:2620

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\i5cJFMUSh.xml

Filesize
1KB

MD5
1eca9bc76acd870c5d51b9692717e77f

SHA1
f3045272c3a5356c030b78a3b280fd0debf177c9

SHA256
cc326b6e66ea9f19c3fa2230cd2fab514296f635359b64d91a780220fa7bf663

SHA512
c311fdabd4b554ca971dfad55cf232634144c9a08081a57593c7deb61713b58f98a5d6b921b46f698817f76fcc48482440a64e042fb03decd01629d1d1e463b8

Download Submit
C:\Users\Admin\AppData\Local\Temp\teur4.exe

Filesize
615KB

MD5
2e38baeae2ba1db7d29fe16b8c74f93a

SHA1
d41e909eb38542032b064d033e139a2669092977

SHA256
2fa067156ae80576a9fc02f95e239f019ab67e65067f49c84b8339451b4d3b85

SHA512
bd842c00ae041856ebce20e043b208c64210f555187421c15b82837f67515e65762fd96a088bea8a72e4e5fc8358fd6aebda48c0e4c045276bb37eb4746df176

Download Submit
memory/2672-0-0x0000000000400000-0x000000000065C000-memory.dmp

Filesize
2.4MB

Download
memory/2672-15-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download
memory/2672-7-0x00000000002A0000-0x000000000031E000-memory.dmp

Filesize
504KB

Download
memory/2672-1-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download
memory/3028-30-0x0000000000260000-0x00000000002DE000-memory.dmp

Filesize
504KB

Download
memory/3028-29-0x0000000000340000-0x00000000003AB000-memory.dmp

Filesize
428KB

Download
memory/3028-28-0x0000000000400000-0x000000000065C000-memory.dmp

Filesize
2.4MB

Download
memory/3028-23-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/3028-51-0x0000000000400000-0x000000000065C000-memory.dmp

Filesize
2.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads