e19411b76e85354c5d53a959772efca2ed0315a6e7f74c4bd421edc03022d623

Analysis

max time kernel
90s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
06/01/2023, 07:17

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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
4992	extd.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0002000000022df6-135.dat	upx
behavioral2/files/0x0002000000022df6-136.dat	upx
behavioral2/memory/4992-137-0x0000000000400000-0x00000000004A5000-memory.dmp	upx

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2496 wrote to memory of 5076	2496	611a9e4c291ecd531c6f8f19afc436ea303f5f08.exe	82
PID 2496 wrote to memory of 5076	2496	611a9e4c291ecd531c6f8f19afc436ea303f5f08.exe	82
PID 5076 wrote to memory of 4992	5076	cmd.exe	83
PID 5076 wrote to memory of 4992	5076	cmd.exe	83
PID 5076 wrote to memory of 4992	5076	cmd.exe	83
PID 5076 wrote to memory of 5048	5076	cmd.exe	84
PID 5076 wrote to memory of 5048	5076	cmd.exe	84
PID 5076 wrote to memory of 1392	5076	cmd.exe	86
PID 5076 wrote to memory of 1392	5076	cmd.exe	86
PID 5076 wrote to memory of 1336	5076	cmd.exe	88
PID 5076 wrote to memory of 1336	5076	cmd.exe	88
PID 5076 wrote to memory of 1464	5076	cmd.exe	90
PID 5076 wrote to memory of 1464	5076	cmd.exe	90
PID 5076 wrote to memory of 1844	5076	cmd.exe	91
PID 5076 wrote to memory of 1844	5076	cmd.exe	91

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
1844	attrib.exe
1464	attrib.exe

C:\Users\Admin\AppData\Local\Temp\611a9e4c291ecd531c6f8f19afc436ea303f5f08.exe
"C:\Users\Admin\AppData\Local\Temp\611a9e4c291ecd531c6f8f19afc436ea303f5f08.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2496
- C:\Windows\system32\cmd.exe
  "C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\C7AA.tmp\C7AB.tmp\C7AC.bat C:\Users\Admin\AppData\Local\Temp\611a9e4c291ecd531c6f8f19afc436ea303f5f08.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5076
- - C:\Users\Admin\AppData\Local\Temp\C7AA.tmp\C7AB.tmp\extd.exe
    C:\Users\Admin\AppData\Local\Temp\C7AA.tmp\C7AB.tmp\extd.exe "/hideself" "" "" "" "" "" "" "" ""
    3⤵
    - Executes dropped EXE
    PID:4992
- - C:\Windows\system32\reg.exe
    reg delete HKCR/.exe
    3⤵
    PID:5048
- - C:\Windows\system32\reg.exe
    reg delete HKCR/.dll
    3⤵
    PID:1392
- - C:\Windows\system32\reg.exe
    reg delete HKCR/*
    3⤵
    PID:1336
- - C:\Windows\system32\attrib.exe
    attrib -r -s -h c:bootmgr
    3⤵
    - Views/modifies file attributes
    PID:1464
- - C:\Windows\system32\attrib.exe
    attrib -r -s -h c:bootmgr.sys
    3⤵
    - Views/modifies file attributes
    PID:1844

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\C7AA.tmp\C7AB.tmp\C7AC.bat

Filesize
45KB

MD5
f715ac231112cee77c9a7fcaa78ab47f

SHA1
a302656cbfbbdbb41c4e528044044726e003b291

SHA256
e00c4fd64193a1cc07065e18dd12e0c08c6bd92e4ca7a656de5fd6e6de3f2412

SHA512
e8c31d29a5e43e9228a80b6ea85210118d06826066f6a0638c5e9bf4cbadd25056f5b4eb4b93b498ee6a64db0d83fc1a6558fcd43fced22f95356a5a4264c004

Download Submit
C:\Users\Admin\AppData\Local\Temp\C7AA.tmp\C7AB.tmp\extd.exe

Filesize
259KB

MD5
139b5ce627bc9ec1040a91ebe7830f7c

SHA1
c7e8154ebed98bea9d1f12b08139d130b6836826

SHA256
d4b9b8b1f9ab2fbca7b55c4068bdcefae50ad3994924d67607fc9ae859003332

SHA512
8cc0e484ddb2e8bed4b8554e65ab8e3bfbe2a8f1c554a7aec9eac4c9555396e21c4bc2840d499ce4baffed2a4966a7d742c7c3ada58d039630b03472e322042b

Download Submit
C:\Users\Admin\AppData\Local\Temp\C7AA.tmp\C7AB.tmp\extd.exe

Filesize
259KB

MD5
139b5ce627bc9ec1040a91ebe7830f7c

SHA1
c7e8154ebed98bea9d1f12b08139d130b6836826

SHA256
d4b9b8b1f9ab2fbca7b55c4068bdcefae50ad3994924d67607fc9ae859003332

SHA512
8cc0e484ddb2e8bed4b8554e65ab8e3bfbe2a8f1c554a7aec9eac4c9555396e21c4bc2840d499ce4baffed2a4966a7d742c7c3ada58d039630b03472e322042b

Download Submit
memory/4992-137-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads