e19411b76e85354c5d53a959772efca2ed0315a6e7f74c4bd421edc03022d623

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
06-01-2023 06:59

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General

Target

611a9e4c291ecd531c6f8f19afc436ea303f5f08.exe
Size

441KB
MD5

6d906bd5d8a13d4f606a3b97fae99ad8
SHA1

611a9e4c291ecd531c6f8f19afc436ea303f5f08
SHA256

e19411b76e85354c5d53a959772efca2ed0315a6e7f74c4bd421edc03022d623
SHA512

eb35fccd3facb2b88c6d0600ae9f2ed188909b63b83f3800d63c37cbb05d596bc8582dc9f691532b3e79102088dcfcf06eb3026e90ecc40c6b29d31857f164ba
SSDEEP

6144:B5aWbksiNTBTSJfzmTFZjI+wCtNNHxfLf0Gq0eMmv+bYR8Byaewr8z5PEtmprDWE:B5atNTFSJfzmTLTxxfo0eMqJut5CeE

Score

8^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4552	extd.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000300000000072f-135.dat	upx
behavioral2/files/0x000300000000072f-136.dat	upx
behavioral2/memory/4552-137-0x0000000000400000-0x00000000004A5000-memory.dmp	upx

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3688 wrote to memory of 4996	3688	611a9e4c291ecd531c6f8f19afc436ea303f5f08.exe	84
PID 3688 wrote to memory of 4996	3688	611a9e4c291ecd531c6f8f19afc436ea303f5f08.exe	84
PID 4996 wrote to memory of 4552	4996	cmd.exe	85
PID 4996 wrote to memory of 4552	4996	cmd.exe	85
PID 4996 wrote to memory of 4552	4996	cmd.exe	85
PID 4996 wrote to memory of 4392	4996	cmd.exe	86
PID 4996 wrote to memory of 4392	4996	cmd.exe	86
PID 4996 wrote to memory of 2036	4996	cmd.exe	88
PID 4996 wrote to memory of 2036	4996	cmd.exe	88
PID 4996 wrote to memory of 2284	4996	cmd.exe	89
PID 4996 wrote to memory of 2284	4996	cmd.exe	89
PID 4996 wrote to memory of 3040	4996	cmd.exe	92
PID 4996 wrote to memory of 3040	4996	cmd.exe	92
PID 4996 wrote to memory of 3388	4996	cmd.exe	93
PID 4996 wrote to memory of 3388	4996	cmd.exe	93

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
3040	attrib.exe
3388	attrib.exe

C:\Users\Admin\AppData\Local\Temp\611a9e4c291ecd531c6f8f19afc436ea303f5f08.exe
"C:\Users\Admin\AppData\Local\Temp\611a9e4c291ecd531c6f8f19afc436ea303f5f08.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3688
- C:\Windows\system32\cmd.exe
  "C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\91A6.tmp\91A7.tmp\91A8.bat C:\Users\Admin\AppData\Local\Temp\611a9e4c291ecd531c6f8f19afc436ea303f5f08.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4996
- - C:\Users\Admin\AppData\Local\Temp\91A6.tmp\91A7.tmp\extd.exe
    C:\Users\Admin\AppData\Local\Temp\91A6.tmp\91A7.tmp\extd.exe "/hideself" "" "" "" "" "" "" "" ""
    3⤵
    - Executes dropped EXE
    PID:4552
- - C:\Windows\system32\reg.exe
    reg delete HKCR/.exe
    3⤵
    PID:4392
- - C:\Windows\system32\reg.exe
    reg delete HKCR/.dll
    3⤵
    PID:2036
- - C:\Windows\system32\reg.exe
    reg delete HKCR/*
    3⤵
    PID:2284
- - C:\Windows\system32\attrib.exe
    attrib -r -s -h c:bootmgr
    3⤵
    - Views/modifies file attributes
    PID:3040
- - C:\Windows\system32\attrib.exe
    attrib -r -s -h c:bootmgr.sys
    3⤵
    - Views/modifies file attributes
    PID:3388

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\91A6.tmp\91A7.tmp\91A8.bat

Filesize
45KB

MD5
10292d64a369171badb8019d722b7d61

SHA1
d3162f902924b5ad3739674c90d2e70f6bf6081d

SHA256
9b356e81d4d1244b9ec75738a4f68d30ffbd69a7b718be82ffcc67a78ff90e79

SHA512
9a581f42f007e1f01a68b40a434d29ce749e1c2e58eeff2280a82deaa954ef2239baea37fb51f8254c8556462e8ade057252941e08f71cb6c0b57d632d86b692

Download Submit
C:\Users\Admin\AppData\Local\Temp\91A6.tmp\91A7.tmp\extd.exe

Filesize
259KB

MD5
139b5ce627bc9ec1040a91ebe7830f7c

SHA1
c7e8154ebed98bea9d1f12b08139d130b6836826

SHA256
d4b9b8b1f9ab2fbca7b55c4068bdcefae50ad3994924d67607fc9ae859003332

SHA512
8cc0e484ddb2e8bed4b8554e65ab8e3bfbe2a8f1c554a7aec9eac4c9555396e21c4bc2840d499ce4baffed2a4966a7d742c7c3ada58d039630b03472e322042b

Download Submit
C:\Users\Admin\AppData\Local\Temp\91A6.tmp\91A7.tmp\extd.exe

Filesize
259KB

MD5
139b5ce627bc9ec1040a91ebe7830f7c

SHA1
c7e8154ebed98bea9d1f12b08139d130b6836826

SHA256
d4b9b8b1f9ab2fbca7b55c4068bdcefae50ad3994924d67607fc9ae859003332

SHA512
8cc0e484ddb2e8bed4b8554e65ab8e3bfbe2a8f1c554a7aec9eac4c9555396e21c4bc2840d499ce4baffed2a4966a7d742c7c3ada58d039630b03472e322042b

Download Submit
memory/4552-137-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads