b41cb756467359c4875db259a29ac872f2b2bf4d1ceb510d831bfae53afddc39

Analysis

max time kernel
2s
max time network
103s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
22-12-2023 14:22

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General

Target

bf0232bab901b8931a5687ae9f427eec.exe
Size

3.9MB
MD5

bf0232bab901b8931a5687ae9f427eec
SHA1

f6ba85bde4e26e6168083b0b5be26e769c6fa257
SHA256

b41cb756467359c4875db259a29ac872f2b2bf4d1ceb510d831bfae53afddc39
SHA512

4bdc760b28e6620e289f24a1336f8e6c45e7103cd9862e135bd0640c7e65afefa0428136a72a3b13166229b43d36a203a6fa3d65c41e6e3072bc581c2df445da
SSDEEP

98304:vX6krN2cakcibiqhsEsKdQwPrmcakcibiqha3c58JhMczeQcakcibiqhsEsKdQwb:PSdlir3sLwDmdlir83cCactdlir3sLwd

Score

7^/10

upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4492	bf0232bab901b8931a5687ae9f427eec.exe

Executes dropped EXE 1 IoCs

pid	Process
4492	bf0232bab901b8931a5687ae9f427eec.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2772-0-0x0000000000400000-0x000000000065C000-memory.dmp	upx
behavioral2/files/0x000c000000023157-12.dat	upx
behavioral2/memory/4492-14-0x0000000000400000-0x000000000065C000-memory.dmp	upx

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Program crash 18 IoCs

pid	pid_target	Process	procid_target
216	4492	WerFault.exe	91
2484	4492	WerFault.exe	91
4132	4492	WerFault.exe	91
4524	4492	WerFault.exe	91
1228	4492	WerFault.exe	91
1744	4492	WerFault.exe	91
2640	4492	WerFault.exe	91
3868	4492	WerFault.exe	91
3548	4492	WerFault.exe	91
1132	4492	WerFault.exe	91
2652	4492	WerFault.exe	91
1856	4492	WerFault.exe	91
3740	4492	WerFault.exe	91
4676	4492	WerFault.exe	91
3168	4492	WerFault.exe	91
3572	4492	WerFault.exe	91
3260	4492	WerFault.exe	91
3208	4492	WerFault.exe	91

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/Job

T1053

pid	Process
1420	schtasks.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2772	bf0232bab901b8931a5687ae9f427eec.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2772	bf0232bab901b8931a5687ae9f427eec.exe
4492	bf0232bab901b8931a5687ae9f427eec.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2772 wrote to memory of 4492	2772	bf0232bab901b8931a5687ae9f427eec.exe	91
PID 2772 wrote to memory of 4492	2772	bf0232bab901b8931a5687ae9f427eec.exe	91
PID 2772 wrote to memory of 4492	2772	bf0232bab901b8931a5687ae9f427eec.exe	91
PID 4492 wrote to memory of 1420	4492	bf0232bab901b8931a5687ae9f427eec.exe	96
PID 4492 wrote to memory of 1420	4492	bf0232bab901b8931a5687ae9f427eec.exe	96
PID 4492 wrote to memory of 1420	4492	bf0232bab901b8931a5687ae9f427eec.exe	96
PID 4492 wrote to memory of 4972	4492	bf0232bab901b8931a5687ae9f427eec.exe	99
PID 4492 wrote to memory of 4972	4492	bf0232bab901b8931a5687ae9f427eec.exe	99
PID 4492 wrote to memory of 4972	4492	bf0232bab901b8931a5687ae9f427eec.exe	99
PID 4972 wrote to memory of 4448	4972	cmd.exe	98
PID 4972 wrote to memory of 4448	4972	cmd.exe	98
PID 4972 wrote to memory of 4448	4972	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\bf0232bab901b8931a5687ae9f427eec.exe
"C:\Users\Admin\AppData\Local\Temp\bf0232bab901b8931a5687ae9f427eec.exe"
1⤵
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2772
- C:\Users\Admin\AppData\Local\Temp\bf0232bab901b8931a5687ae9f427eec.exe
  C:\Users\Admin\AppData\Local\Temp\bf0232bab901b8931a5687ae9f427eec.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:4492
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\bf0232bab901b8931a5687ae9f427eec.exe" /TN qPTTkyZ9c33c /F
    3⤵
    - Creates scheduled task(s)
    PID:1420
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /c schtasks.exe /Query /XML /TN qPTTkyZ9c33c > C:\Users\Admin\AppData\Local\Temp\Gw4v3S5HL.xml
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4972
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4492 -s 604
    3⤵
    - Program crash
    PID:216
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4492 -s 620
    3⤵
    - Program crash
    PID:2484
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4492 -s 652
    3⤵
    - Program crash
    PID:4132
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4492 -s 648
    3⤵
    - Program crash
    PID:4524
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4492 -s 772
    3⤵
    - Program crash
    PID:1228
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4492 -s 780
    3⤵
    - Program crash
    PID:1744
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4492 -s 1456
    3⤵
    - Program crash
    PID:2640
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4492 -s 1916
    3⤵
    - Program crash
    PID:3868
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4492 -s 2144
    3⤵
    - Program crash
    PID:3548
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4492 -s 1876
    3⤵
    - Program crash
    PID:1132
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4492 -s 1920
    3⤵
    - Program crash
    PID:2652
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4492 -s 2104
    3⤵
    - Program crash
    PID:1856
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4492 -s 2124
    3⤵
    - Program crash
    PID:3740
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4492 -s 2192
    3⤵
    - Program crash
    PID:4676
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4492 -s 1968
    3⤵
    - Program crash
    PID:3168
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4492 -s 1924
    3⤵
    - Program crash
    PID:3572
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4492 -s 1936
    3⤵
    - Program crash
    PID:3260
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4492 -s 604
    3⤵
    - Program crash
    PID:3208

C:\Windows\SysWOW64\schtasks.exe
schtasks.exe /Query /XML /TN qPTTkyZ9c33c
1⤵
PID:4448

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4492 -ip 4492
1⤵
PID:4452

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4492 -ip 4492
1⤵
PID:1100

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4492 -ip 4492
1⤵
PID:2876

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 4492 -ip 4492
1⤵
PID:1160

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4492 -ip 4492
1⤵
PID:1368

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4492 -ip 4492
1⤵
PID:1624

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4492 -ip 4492
1⤵
PID:3292

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4492 -ip 4492
1⤵
PID:4508

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 4492 -ip 4492
1⤵
PID:4908

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4492 -ip 4492
1⤵
PID:3460

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 4492 -ip 4492
1⤵
PID:2480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 4492 -ip 4492
1⤵
PID:5060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4492 -ip 4492
1⤵
PID:8

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4492 -ip 4492
1⤵
PID:4360

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4492 -ip 4492
1⤵
PID:948

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4492 -ip 4492
1⤵
PID:5072

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4492 -ip 4492
1⤵
PID:3528

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 4492 -ip 4492
1⤵
PID:4900

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Gw4v3S5HL.xml

Filesize
1KB

MD5
4647c4fd64e0d9fd33bf7293dd8e6b6b

SHA1
095ded2aebb7c2ff73c4e0a14d4c0f40ba6e835b

SHA256
006e6103f20f7a567a312cb249c8753d4ff1abafaac0f4528d7aecb12bc162c9

SHA512
9779c97d17745f06ab645dd3adb621794443a404dbb69f1d7f81554eaf7e6464ff2a939acf52e066a435badb0f88ecfe6c8ba85807a6e211bda9f614151a74b5

Download Submit
C:\Users\Admin\AppData\Local\Temp\bf0232bab901b8931a5687ae9f427eec.exe

Filesize
494KB

MD5
9896f53693dd00ccc61bf09bfdf039b9

SHA1
0628a658dc4efdaf0e01ca612c3c9d27108d0609

SHA256
b88e17fa715a89438f8cfa0cfc78583b90fb8b0aebe8c509e0942f83dfbe0607

SHA512
5241e7b731b4a9fdf5c0bc302e163b887e5605d151b1cdf60b6fef63edbe7c66263ecd3225443353726d00edaa792f46ccaf250bfb10572dc96264ac5e719453

Download Submit
memory/2772-0-0x0000000000400000-0x000000000065C000-memory.dmp

Filesize
2.4MB

Download
memory/2772-3-0x0000000025010000-0x000000002508E000-memory.dmp

Filesize
504KB

Download
memory/2772-1-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download
memory/2772-13-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download
memory/4492-14-0x0000000000400000-0x000000000065C000-memory.dmp

Filesize
2.4MB

Download
memory/4492-17-0x0000000025000000-0x000000002507E000-memory.dmp

Filesize
504KB

Download
memory/4492-23-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/4492-22-0x0000000000470000-0x00000000004DB000-memory.dmp

Filesize
428KB

Download
memory/4492-41-0x0000000000400000-0x000000000065C000-memory.dmp

Filesize
2.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads