1b8ed464167fe9119209e5184e9206a6783daffb96ced01208d253459016c476

Analysis

max time kernel
93s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
25/02/2024, 14:16

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General

Target

a3feca9ceee93eacd57ac33485cadecc.exe
Size

11KB
MD5

a3feca9ceee93eacd57ac33485cadecc
SHA1

8fb9c299de4517ab14165968b891bf117d43c754
SHA256

1b8ed464167fe9119209e5184e9206a6783daffb96ced01208d253459016c476
SHA512

c6e514b51a1f80012f316bc66e4eca2c10643655473022008f72b2d64ef3edcb5abb144e7b9e3c0c09ca4b178c28ba66ef624c11deceba0566ba210bbc799e35
SSDEEP

192:oEQ8aOqy470DLJpcmKwV7yKLpZYTL19xiLJy0hGsW:QeMYDXuhszYX19INhVW

Score

8^/10

aspackv2 evasion

Malware Config

Signatures

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

pid	Process
2028	attrib.exe
4200	attrib.exe

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral2/files/0x000300000001e96f-10.dat	aspack_v212_v242

Executes dropped EXE 2 IoCs

pid	Process
3464	v4xqrsma.exe
5012	v4xqrsma.exe

Drops file in System32 directory 10 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\v4xqrsma.exe	a3feca9ceee93eacd57ac33485cadecc.exe
File opened for modification	C:\Windows\SysWOW64\v4xqrsma.exe.bat	v4xqrsma.exe
File opened for modification	C:\Windows\SysWOW64\v4xqrsma.exe.bat	attrib.exe
File opened for modification	C:\Windows\SysWOW64\v4xqrsma.exe	a3feca9ceee93eacd57ac33485cadecc.exe
File created	C:\Windows\SysWOW64\v4xqrsma.exe	v4xqrsma.exe
File created	C:\Windows\SysWOW64\v4xqrsma.exe.bat	v4xqrsma.exe
File opened for modification	C:\Windows\SysWOW64\v4xqrsma.exe.bat	v4xqrsma.exe
File opened for modification	C:\Windows\SysWOW64\v4xqrsma.exe.bat	attrib.exe
File created	C:\Windows\SysWOW64\yox52v2z.exe	v4xqrsma.exe
File opened for modification	C:\Windows\SysWOW64\yox52v2z.exe	v4xqrsma.exe

Enumerates processes with tasklist 1 TTPs 2 IoCs

Process Discovery

T1057

pid	Process
4820	tasklist.exe
2900	tasklist.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4820	tasklist.exe
Token: SeDebugPrivilege	2900	tasklist.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 4244 wrote to memory of 2588	4244	a3feca9ceee93eacd57ac33485cadecc.exe	88
PID 4244 wrote to memory of 2588	4244	a3feca9ceee93eacd57ac33485cadecc.exe	88
PID 4244 wrote to memory of 2588	4244	a3feca9ceee93eacd57ac33485cadecc.exe	88
PID 2588 wrote to memory of 2028	2588	cmd.exe	90
PID 2588 wrote to memory of 2028	2588	cmd.exe	90
PID 2588 wrote to memory of 2028	2588	cmd.exe	90
PID 2588 wrote to memory of 4820	2588	cmd.exe	91
PID 2588 wrote to memory of 4820	2588	cmd.exe	91
PID 2588 wrote to memory of 4820	2588	cmd.exe	91
PID 2588 wrote to memory of 1260	2588	cmd.exe	92
PID 2588 wrote to memory of 1260	2588	cmd.exe	92
PID 2588 wrote to memory of 1260	2588	cmd.exe	92
PID 2588 wrote to memory of 3464	2588	cmd.exe	95
PID 2588 wrote to memory of 3464	2588	cmd.exe	95
PID 2588 wrote to memory of 3464	2588	cmd.exe	95
PID 2588 wrote to memory of 4852	2588	cmd.exe	96
PID 2588 wrote to memory of 4852	2588	cmd.exe	96
PID 2588 wrote to memory of 4852	2588	cmd.exe	96
PID 3464 wrote to memory of 1572	3464	v4xqrsma.exe	97
PID 3464 wrote to memory of 1572	3464	v4xqrsma.exe	97
PID 3464 wrote to memory of 1572	3464	v4xqrsma.exe	97
PID 1572 wrote to memory of 4200	1572	cmd.exe	99
PID 1572 wrote to memory of 4200	1572	cmd.exe	99
PID 1572 wrote to memory of 4200	1572	cmd.exe	99
PID 1572 wrote to memory of 2900	1572	cmd.exe	102
PID 1572 wrote to memory of 2900	1572	cmd.exe	102
PID 1572 wrote to memory of 2900	1572	cmd.exe	102
PID 1572 wrote to memory of 3532	1572	cmd.exe	101
PID 1572 wrote to memory of 3532	1572	cmd.exe	101
PID 1572 wrote to memory of 3532	1572	cmd.exe	101
PID 1572 wrote to memory of 5012	1572	cmd.exe	104
PID 1572 wrote to memory of 5012	1572	cmd.exe	104
PID 1572 wrote to memory of 5012	1572	cmd.exe	104
PID 1572 wrote to memory of 2612	1572	cmd.exe	105
PID 1572 wrote to memory of 2612	1572	cmd.exe	105
PID 1572 wrote to memory of 2612	1572	cmd.exe	105
PID 5012 wrote to memory of 2928	5012	v4xqrsma.exe	106
PID 5012 wrote to memory of 2928	5012	v4xqrsma.exe	106
PID 5012 wrote to memory of 2928	5012	v4xqrsma.exe	106

Views/modifies file attributes 1 TTPs 4 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
4852	attrib.exe
4200	attrib.exe
2612	attrib.exe
2028	attrib.exe

C:\Users\Admin\AppData\Local\Temp\a3feca9ceee93eacd57ac33485cadecc.exe
"C:\Users\Admin\AppData\Local\Temp\a3feca9ceee93eacd57ac33485cadecc.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4244
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\a3feca9ceee93eacd57ac33485cadecc.exe.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2588
- - C:\Windows\SysWOW64\attrib.exe
    attrib C:\Users\Admin\AppData\Local\Temp\a3feca9ceee93eacd57ac33485cadecc.exe.bat -r -a +s +h
    3⤵
    - Sets file to hidden
    - Views/modifies file attributes
    PID:2028
- - C:\Windows\SysWOW64\tasklist.exe
    tasklist
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:4820
- - C:\Windows\SysWOW64\findstr.exe
    findstr /i /b "a3feca9ceee93eacd57ac33485cadecc.exe"
    3⤵
    PID:1260
- - C:\Windows\SysWOW64\v4xqrsma.exe
    C:\Windows\system32\v4xqrsma.exe
    3⤵
    - Executes dropped EXE
    - Drops file in System32 directory
    - Suspicious use of WriteProcessMemory
    PID:3464
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Windows\SysWOW64\v4xqrsma.exe.bat
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1572
    - - C:\Windows\SysWOW64\attrib.exe
        
        attrib C:\Windows\SysWOW64\v4xqrsma.exe.bat -r -a +s +h
        5⤵
        Sets file to hidden
        Drops file in System32 directory
        Views/modifies file attributes
        
        PID:4200
    - - C:\Windows\SysWOW64\findstr.exe
        
        findstr /i /b "v4xqrsma.exe"
        5⤵
        
        PID:3532
    - - C:\Windows\SysWOW64\tasklist.exe
        
        tasklist
        5⤵
        Enumerates processes with tasklist
        Suspicious use of AdjustPrivilegeToken
        
        PID:2900
    - - C:\Windows\SysWOW64\v4xqrsma.exe
        
        C:\Windows\system32\v4xqrsma.exe
        5⤵
        Executes dropped EXE
        Drops file in System32 directory
        Suspicious use of WriteProcessMemory
        
        PID:5012
      - C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\system32\cmd.exe /c C:\Windows\SysWOW64\v4xqrsma.exe.bat
        6⤵
        
        PID:2928
    - - C:\Windows\SysWOW64\attrib.exe
        
        attrib C:\Windows\SysWOW64\v4xqrsma.exe.bat -r -a -s -h
        5⤵
        Drops file in System32 directory
        Views/modifies file attributes
        
        PID:2612
- - C:\Windows\SysWOW64\attrib.exe
    attrib C:\Users\Admin\AppData\Local\Temp\a3feca9ceee93eacd57ac33485cadecc.exe.bat -r -a -s -h
    3⤵
    - Views/modifies file attributes
    PID:4852

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Discovery

Process Discovery

T1057

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\a3feca9ceee93eacd57ac33485cadecc.exe.bat

Filesize
286B

MD5
aaa8689f21e0cb13f4ce7330b554cf19

SHA1
3606374bfdb52b62ec9c83e0c201e31a2caab793

SHA256
b0ff782a07dc3e7fe1047941e3364cbae2fc20a724618b7bb7aa74d61cefc186

SHA512
7078d7ededce638102ce7ed5b381dace8c9c3b9bfd8f93cacfde2ecf40b222b98a89ba7cf4e3dd63704ed04ebc7e66eddf2e44b51549a0e43db8a31fe6f1209f

Download Submit
C:\Windows\SysWOW64\v4xqrsma.exe

Filesize
11KB

MD5
a3feca9ceee93eacd57ac33485cadecc

SHA1
8fb9c299de4517ab14165968b891bf117d43c754

SHA256
1b8ed464167fe9119209e5184e9206a6783daffb96ced01208d253459016c476

SHA512
c6e514b51a1f80012f316bc66e4eca2c10643655473022008f72b2d64ef3edcb5abb144e7b9e3c0c09ca4b178c28ba66ef624c11deceba0566ba210bbc799e35

Download Submit
C:\Windows\SysWOW64\v4xqrsma.exe.bat

Filesize
238B

MD5
cbc305398dd7f272c7b788e0ce899599

SHA1
dc249bf238f78e528ee63634ddcfc0b7203603ba

SHA256
33537c3bf02f657a1bd8a21e43c463250468358e04948330d1ce16e1d26b0450

SHA512
80707b7ad486b855297f2991f67951d118f053536f81eec2e3d87d36c0185293923edb1be444346b42539424c32f046d6853f85abb2290d602755ea0abed663c

Download Submit
C:\Windows\SysWOW64\v4xqrsma.exe.bat

Filesize
238B

MD5
5948d980502a3813f9c4c442f14d6c50

SHA1
c6e7d93aec032f494891217a4fdd741dd50d1bf9

SHA256
19291484d9dfd1cd0bdd385a58f80fcad3af0ff36468d171f3cc43cb68fd275c

SHA512
e422f4dd80e72a2a7b0e3e9e7c18e0f5b4de8d516610dff563dfe2a29bf1737866d1a2f176cf57038f191aad0f78683d362b9e128e3f73e56d598ddaefd68965

Download Submit
memory/3464-16-0x0000000000400000-0x000000000040ECCF-memory.dmp

Filesize
59KB

Download
memory/4244-0-0x0000000000400000-0x000000000040ECCF-memory.dmp

Filesize
59KB

Download
memory/4244-1-0x0000000000400000-0x000000000040ECCF-memory.dmp

Filesize
59KB

Download
memory/4244-7-0x0000000000400000-0x000000000040ECCF-memory.dmp

Filesize
59KB

Download
memory/5012-24-0x0000000000400000-0x000000000040ECCF-memory.dmp

Filesize
59KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads