e19411b76e85354c5d53a959772efca2ed0315a6e7f74c4bd421edc03022d623

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
1264	extd.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x00080000000122d2-57.dat	upx
behavioral1/files/0x00080000000122d2-59.dat	upx
behavioral1/memory/1264-61-0x0000000000400000-0x00000000004A5000-memory.dmp	upx

Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs

pid	Process
1264	extd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1648 wrote to memory of 2008	1648	611a9e4c291ecd531c6f8f19afc436ea303f5f08.exe	29
PID 1648 wrote to memory of 2008	1648	611a9e4c291ecd531c6f8f19afc436ea303f5f08.exe	29
PID 1648 wrote to memory of 2008	1648	611a9e4c291ecd531c6f8f19afc436ea303f5f08.exe	29
PID 1648 wrote to memory of 2008	1648	611a9e4c291ecd531c6f8f19afc436ea303f5f08.exe	29
PID 2008 wrote to memory of 1264	2008	cmd.exe	30
PID 2008 wrote to memory of 1264	2008	cmd.exe	30
PID 2008 wrote to memory of 1264	2008	cmd.exe	30
PID 2008 wrote to memory of 1264	2008	cmd.exe	30
PID 2008 wrote to memory of 1124	2008	cmd.exe	31
PID 2008 wrote to memory of 1124	2008	cmd.exe	31
PID 2008 wrote to memory of 1124	2008	cmd.exe	31
PID 2008 wrote to memory of 848	2008	cmd.exe	32
PID 2008 wrote to memory of 848	2008	cmd.exe	32
PID 2008 wrote to memory of 848	2008	cmd.exe	32
PID 2008 wrote to memory of 1212	2008	cmd.exe	33
PID 2008 wrote to memory of 1212	2008	cmd.exe	33
PID 2008 wrote to memory of 1212	2008	cmd.exe	33
PID 2008 wrote to memory of 964	2008	cmd.exe	37
PID 2008 wrote to memory of 964	2008	cmd.exe	37
PID 2008 wrote to memory of 964	2008	cmd.exe	37
PID 2008 wrote to memory of 2020	2008	cmd.exe	38
PID 2008 wrote to memory of 2020	2008	cmd.exe	38
PID 2008 wrote to memory of 2020	2008	cmd.exe	38

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
964	attrib.exe
2020	attrib.exe

C:\Users\Admin\AppData\Local\Temp\611a9e4c291ecd531c6f8f19afc436ea303f5f08.exe
"C:\Users\Admin\AppData\Local\Temp\611a9e4c291ecd531c6f8f19afc436ea303f5f08.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1648
- C:\Windows\system32\cmd.exe
  "C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\E0EE.tmp\E0EF.tmp\E0F0.bat C:\Users\Admin\AppData\Local\Temp\611a9e4c291ecd531c6f8f19afc436ea303f5f08.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2008
- - C:\Users\Admin\AppData\Local\Temp\E0EE.tmp\E0EF.tmp\extd.exe
    C:\Users\Admin\AppData\Local\Temp\E0EE.tmp\E0EF.tmp\extd.exe "/hideself" "" "" "" "" "" "" "" ""
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: CmdExeWriteProcessMemorySpam
    PID:1264
- - C:\Windows\system32\reg.exe
    reg delete HKCR/.exe
    3⤵
    PID:1124
- - C:\Windows\system32\reg.exe
    reg delete HKCR/.dll
    3⤵
    PID:848
- - C:\Windows\system32\reg.exe
    reg delete HKCR/*
    3⤵
    PID:1212
- - C:\Windows\system32\attrib.exe
    attrib -r -s -h c:bootmgr
    3⤵
    - Views/modifies file attributes
    PID:964
- - C:\Windows\system32\attrib.exe
    attrib -r -s -h c:bootmgr.sys
    3⤵
    - Views/modifies file attributes
    PID:2020

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

1

T1158

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\E0EE.tmp\E0EF.tmp\E0F0.bat

Filesize
45KB

MD5
a0d3c3021571945794f521ba8b12d989

SHA1
94596b4a60d206f371b0cab5290e725c7a66f229

SHA256
6011bba05b9a58608575398abfb152ba0c350ad1899314b6091b5492ca15ff05

SHA512
2fcba5fd072faf0ef0d1e67e8cd440b1c0640b52942cb3511fed60046f9dfccc6e128c12f39e66a6a35ee4f95480c9fb27a41badbdeb0af6bbcb8c2a118131d8

Download Submit
C:\Users\Admin\AppData\Local\Temp\E0EE.tmp\E0EF.tmp\extd.exe

Filesize
259KB

MD5
139b5ce627bc9ec1040a91ebe7830f7c

SHA1
c7e8154ebed98bea9d1f12b08139d130b6836826

SHA256
d4b9b8b1f9ab2fbca7b55c4068bdcefae50ad3994924d67607fc9ae859003332

SHA512
8cc0e484ddb2e8bed4b8554e65ab8e3bfbe2a8f1c554a7aec9eac4c9555396e21c4bc2840d499ce4baffed2a4966a7d742c7c3ada58d039630b03472e322042b

Download Submit
C:\Users\Admin\AppData\Local\Temp\E0EE.tmp\E0EF.tmp\extd.exe

Filesize
259KB

MD5
139b5ce627bc9ec1040a91ebe7830f7c

SHA1
c7e8154ebed98bea9d1f12b08139d130b6836826

SHA256
d4b9b8b1f9ab2fbca7b55c4068bdcefae50ad3994924d67607fc9ae859003332

SHA512
8cc0e484ddb2e8bed4b8554e65ab8e3bfbe2a8f1c554a7aec9eac4c9555396e21c4bc2840d499ce4baffed2a4966a7d742c7c3ada58d039630b03472e322042b

Download Submit
memory/1264-61-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download
memory/1648-54-0x0000000075811000-0x0000000075813000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads