323d24da8aa4da3b38025eb86fc871b8b48779dfc5c22b590feef3680c7da007

Analysis

max time kernel
104s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
26/08/2024, 07:50

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General

Target

91781f31eb91b3e2dfb4be773b565f90N.exe
Size

2.2MB
MD5

91781f31eb91b3e2dfb4be773b565f90
SHA1

8b7b44922b905ac32d228fed8d2581321a8ede87
SHA256

323d24da8aa4da3b38025eb86fc871b8b48779dfc5c22b590feef3680c7da007
SHA512

8b09580e44fad7d75f0591a3c5d8861328bb456808996d17dd526f2d3e1e76ff513fea9e40f0a803930118d0b1e436dfbc047b0ff824bf9118ca80a32d63b564
SSDEEP

49152:AcQbYD/jGLnJcN+9zWFULG+aLP6hN5aC67sv/nj0cN+9zWFULG+aLP6hX:AcQbYD/KLnqA9zyULG+aLP25ah7k/jp6

Score

7^/10

discovery upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2436	91781f31eb91b3e2dfb4be773b565f90N.exe

Executes dropped EXE 1 IoCs

pid	Process
2436	91781f31eb91b3e2dfb4be773b565f90N.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1176-0-0x0000000000400000-0x000000000065C000-memory.dmp	upx
behavioral2/files/0x000900000002347c-12.dat	upx
behavioral2/memory/2436-14-0x0000000000400000-0x000000000065C000-memory.dmp	upx

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

Web Service

T1102

flow	ioc
20	pastebin.com

Program crash 19 IoCs

pid	pid_target	Process	procid_target
2940	2436	WerFault.exe	85
4512	2436	WerFault.exe	85
1248	2436	WerFault.exe	85
3076	2436	WerFault.exe	85
1752	2436	WerFault.exe	85
3104	2436	WerFault.exe	85
1136	2436	WerFault.exe	85
344	2436	WerFault.exe	85
2416	2436	WerFault.exe	85
4692	2436	WerFault.exe	85
2472	2436	WerFault.exe	85
2956	2436	WerFault.exe	85
4056	2436	WerFault.exe	85
4592	2436	WerFault.exe	85
4076	2436	WerFault.exe	85
2836	2436	WerFault.exe	85
3940	2436	WerFault.exe	85
1232	2436	WerFault.exe	85
4648	2436	WerFault.exe	85

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	91781f31eb91b3e2dfb4be773b565f90N.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	91781f31eb91b3e2dfb4be773b565f90N.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
2620	schtasks.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1176	91781f31eb91b3e2dfb4be773b565f90N.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1176	91781f31eb91b3e2dfb4be773b565f90N.exe
2436	91781f31eb91b3e2dfb4be773b565f90N.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1176 wrote to memory of 2436	1176	91781f31eb91b3e2dfb4be773b565f90N.exe	85
PID 1176 wrote to memory of 2436	1176	91781f31eb91b3e2dfb4be773b565f90N.exe	85
PID 1176 wrote to memory of 2436	1176	91781f31eb91b3e2dfb4be773b565f90N.exe	85
PID 2436 wrote to memory of 2620	2436	91781f31eb91b3e2dfb4be773b565f90N.exe	86
PID 2436 wrote to memory of 2620	2436	91781f31eb91b3e2dfb4be773b565f90N.exe	86
PID 2436 wrote to memory of 2620	2436	91781f31eb91b3e2dfb4be773b565f90N.exe	86
PID 2436 wrote to memory of 4732	2436	91781f31eb91b3e2dfb4be773b565f90N.exe	88
PID 2436 wrote to memory of 4732	2436	91781f31eb91b3e2dfb4be773b565f90N.exe	88
PID 2436 wrote to memory of 4732	2436	91781f31eb91b3e2dfb4be773b565f90N.exe	88
PID 4732 wrote to memory of 1948	4732	cmd.exe	90
PID 4732 wrote to memory of 1948	4732	cmd.exe	90
PID 4732 wrote to memory of 1948	4732	cmd.exe	90

C:\Users\Admin\AppData\Local\Temp\91781f31eb91b3e2dfb4be773b565f90N.exe
"C:\Users\Admin\AppData\Local\Temp\91781f31eb91b3e2dfb4be773b565f90N.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1176
- C:\Users\Admin\AppData\Local\Temp\91781f31eb91b3e2dfb4be773b565f90N.exe
  C:\Users\Admin\AppData\Local\Temp\91781f31eb91b3e2dfb4be773b565f90N.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:2436
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\91781f31eb91b3e2dfb4be773b565f90N.exe" /TN n3TzfEYb35ee /F
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2620
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /c schtasks.exe /Query /XML /TN n3TzfEYb35ee > C:\Users\Admin\AppData\Local\Temp\baKEkz.xml
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4732
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks.exe /Query /XML /TN n3TzfEYb35ee
      4⤵
      System Location Discovery: System Language Discovery
      PID:1948
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2436 -s 604
    3⤵
    - Program crash
    PID:2940
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2436 -s 628
    3⤵
    - Program crash
    PID:4512
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2436 -s 724
    3⤵
    - Program crash
    PID:1248
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2436 -s 728
    3⤵
    - Program crash
    PID:3076
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2436 -s 728
    3⤵
    - Program crash
    PID:1752
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2436 -s 756
    3⤵
    - Program crash
    PID:3104
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2436 -s 1472
    3⤵
    - Program crash
    PID:1136
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2436 -s 1556
    3⤵
    - Program crash
    PID:344
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2436 -s 1744
    3⤵
    - Program crash
    PID:2416
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2436 -s 1708
    3⤵
    - Program crash
    PID:4692
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2436 -s 1576
    3⤵
    - Program crash
    PID:2472
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2436 -s 1552
    3⤵
    - Program crash
    PID:2956
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2436 -s 1752
    3⤵
    - Program crash
    PID:4056
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2436 -s 1600
    3⤵
    - Program crash
    PID:4592
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2436 -s 1728
    3⤵
    - Program crash
    PID:4076
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2436 -s 1824
    3⤵
    - Program crash
    PID:2836
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2436 -s 1868
    3⤵
    - Program crash
    PID:3940
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2436 -s 1820
    3⤵
    - Program crash
    PID:1232
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2436 -s 1616
    3⤵
    - Program crash
    PID:4648

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2436 -ip 2436
1⤵
PID:5004

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 2436 -ip 2436
1⤵
PID:672

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2436 -ip 2436
1⤵
PID:4528

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 2436 -ip 2436
1⤵
PID:2132

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 2436 -ip 2436
1⤵
PID:3728

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2436 -ip 2436
1⤵
PID:2856

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 176 -p 2436 -ip 2436
1⤵
PID:3080

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 2436 -ip 2436
1⤵
PID:2528

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 2436 -ip 2436
1⤵
PID:3168

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2436 -ip 2436
1⤵
PID:4100

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 2436 -ip 2436
1⤵
PID:5044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 2436 -ip 2436
1⤵
PID:4028

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 2436 -ip 2436
1⤵
PID:2420

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 2436 -ip 2436
1⤵
PID:2464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2436 -ip 2436
1⤵
PID:4336

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2436 -ip 2436
1⤵
PID:2296

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2436 -ip 2436
1⤵
PID:3328

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 2436 -ip 2436
1⤵
PID:4052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 2436 -ip 2436
1⤵
PID:536

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\91781f31eb91b3e2dfb4be773b565f90N.exe

Filesize
2.2MB

MD5
ff87ae862bd9bbf5233f1cee992937c4

SHA1
0aaa78b887a63fd68bfd49aabb22e0060eddf70b

SHA256
ec9051a1395b6dc4f2f6e9393bf92f071317e650346d3b002995e0d04262008e

SHA512
cd8065cb1439a38f845e3ef3ed39e670e1b4537719429ff5d61f8ed87e8d3196c8c3e2638935c76d06c51339a8581074b85a90686ece3f16d8b5c2a07bba19f9

Download Submit
C:\Users\Admin\AppData\Local\Temp\baKEkz.xml

Filesize
1KB

MD5
dbb7c2288be8751aa8af3c6a4144d2c3

SHA1
5539a5fd632ec4a25d0f942ac1e1a02b454b8692

SHA256
33202b9fc11baa526cd2cd01f728c23ef6d7db9a1f437ffb8d608d76965cec2a

SHA512
2ea1b8f948a4ab2aaa4757527533b62177f7fdeb1a916a711439c98463dbc92e06beb77f82d79d92b0865d28e9e1277fa4df8a2a8d9d823f6c16435159202faf

Download Submit
memory/1176-0-0x0000000000400000-0x000000000065C000-memory.dmp

Filesize
2.4MB

Download
memory/1176-1-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download
memory/1176-7-0x0000000024FF0000-0x000000002506E000-memory.dmp

Filesize
504KB

Download
memory/1176-13-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download
memory/2436-14-0x0000000000400000-0x000000000065C000-memory.dmp

Filesize
2.4MB

Download
memory/2436-15-0x0000000001730000-0x00000000017AE000-memory.dmp

Filesize
504KB

Download
memory/2436-22-0x0000000000470000-0x00000000004DB000-memory.dmp

Filesize
428KB

Download
memory/2436-23-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2436-44-0x0000000000400000-0x000000000065C000-memory.dmp

Filesize
2.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads