1b8ed464167fe9119209e5184e9206a6783daffb96ced01208d253459016c476

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/02/2024, 14:16

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

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
3000	attrib.exe
2616	attrib.exe

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral1/files/0x000c000000012248-14.dat	aspack_v212_v242

Deletes itself 1 IoCs

pid	Process
2736	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
2720	v4xqrsma.exe
2468	v4xqrsma.exe

Loads dropped DLL 7 IoCs

pid	Process
2736	cmd.exe
2736	cmd.exe
2764	cmd.exe
2764	cmd.exe
2344	WerFault.exe
2344	WerFault.exe
2344	WerFault.exe

Drops file in System32 directory 9 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\v4xqrsma.exe	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\v4xqrsma.exe	a3feca9ceee93eacd57ac33485cadecc.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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2344	2468	WerFault.exe	41

Enumerates processes with tasklist 1 TTPs 2 IoCs

Process Discovery

T1057

pid	Process
2588	tasklist.exe
2560	tasklist.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2588	tasklist.exe
Token: SeDebugPrivilege	2560	tasklist.exe

Suspicious use of WriteProcessMemory 52 IoCs

description	pid	Process	procid_target
PID 2080 wrote to memory of 2736	2080	a3feca9ceee93eacd57ac33485cadecc.exe	28
PID 2080 wrote to memory of 2736	2080	a3feca9ceee93eacd57ac33485cadecc.exe	28
PID 2080 wrote to memory of 2736	2080	a3feca9ceee93eacd57ac33485cadecc.exe	28
PID 2080 wrote to memory of 2736	2080	a3feca9ceee93eacd57ac33485cadecc.exe	28
PID 2736 wrote to memory of 3000	2736	cmd.exe	30
PID 2736 wrote to memory of 3000	2736	cmd.exe	30
PID 2736 wrote to memory of 3000	2736	cmd.exe	30
PID 2736 wrote to memory of 3000	2736	cmd.exe	30
PID 2736 wrote to memory of 2588	2736	cmd.exe	31
PID 2736 wrote to memory of 2588	2736	cmd.exe	31
PID 2736 wrote to memory of 2588	2736	cmd.exe	31
PID 2736 wrote to memory of 2588	2736	cmd.exe	31
PID 2736 wrote to memory of 2576	2736	cmd.exe	32
PID 2736 wrote to memory of 2576	2736	cmd.exe	32
PID 2736 wrote to memory of 2576	2736	cmd.exe	32
PID 2736 wrote to memory of 2576	2736	cmd.exe	32
PID 2736 wrote to memory of 2720	2736	cmd.exe	34
PID 2736 wrote to memory of 2720	2736	cmd.exe	34
PID 2736 wrote to memory of 2720	2736	cmd.exe	34
PID 2736 wrote to memory of 2720	2736	cmd.exe	34
PID 2736 wrote to memory of 1400	2736	cmd.exe	35
PID 2736 wrote to memory of 1400	2736	cmd.exe	35
PID 2736 wrote to memory of 1400	2736	cmd.exe	35
PID 2736 wrote to memory of 1400	2736	cmd.exe	35
PID 2720 wrote to memory of 2764	2720	v4xqrsma.exe	37
PID 2720 wrote to memory of 2764	2720	v4xqrsma.exe	37
PID 2720 wrote to memory of 2764	2720	v4xqrsma.exe	37
PID 2720 wrote to memory of 2764	2720	v4xqrsma.exe	37
PID 2764 wrote to memory of 2616	2764	cmd.exe	38
PID 2764 wrote to memory of 2616	2764	cmd.exe	38
PID 2764 wrote to memory of 2616	2764	cmd.exe	38
PID 2764 wrote to memory of 2616	2764	cmd.exe	38
PID 2764 wrote to memory of 2560	2764	cmd.exe	39
PID 2764 wrote to memory of 2560	2764	cmd.exe	39
PID 2764 wrote to memory of 2560	2764	cmd.exe	39
PID 2764 wrote to memory of 2560	2764	cmd.exe	39
PID 2764 wrote to memory of 2248	2764	cmd.exe	40
PID 2764 wrote to memory of 2248	2764	cmd.exe	40
PID 2764 wrote to memory of 2248	2764	cmd.exe	40
PID 2764 wrote to memory of 2248	2764	cmd.exe	40
PID 2764 wrote to memory of 2468	2764	cmd.exe	41
PID 2764 wrote to memory of 2468	2764	cmd.exe	41
PID 2764 wrote to memory of 2468	2764	cmd.exe	41
PID 2764 wrote to memory of 2468	2764	cmd.exe	41
PID 2764 wrote to memory of 2524	2764	cmd.exe	43
PID 2764 wrote to memory of 2524	2764	cmd.exe	43
PID 2764 wrote to memory of 2524	2764	cmd.exe	43
PID 2764 wrote to memory of 2524	2764	cmd.exe	43
PID 2468 wrote to memory of 2344	2468	v4xqrsma.exe	42
PID 2468 wrote to memory of 2344	2468	v4xqrsma.exe	42
PID 2468 wrote to memory of 2344	2468	v4xqrsma.exe	42
PID 2468 wrote to memory of 2344	2468	v4xqrsma.exe	42

Views/modifies file attributes 1 TTPs 4 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3000	attrib.exe
1400	attrib.exe
2616	attrib.exe
2524	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:2080
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\a3feca9ceee93eacd57ac33485cadecc.exe.bat
  2⤵
  - Deletes itself
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2736
- - 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:3000
- - C:\Windows\SysWOW64\tasklist.exe
    tasklist
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:2588
- - C:\Windows\SysWOW64\findstr.exe
    findstr /i /b "a3feca9ceee93eacd57ac33485cadecc.exe"
    3⤵
    PID:2576
- - C:\Windows\SysWOW64\v4xqrsma.exe
    C:\Windows\system32\v4xqrsma.exe
    3⤵
    - Executes dropped EXE
    - Drops file in System32 directory
    - Suspicious use of WriteProcessMemory
    PID:2720
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /c C:\Windows\SysWOW64\v4xqrsma.exe.bat
      4⤵
      Loads dropped DLL
      Suspicious use of WriteProcessMemory
      PID:2764
    - - 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:2616
    - - C:\Windows\SysWOW64\tasklist.exe
        
        tasklist
        5⤵
        Enumerates processes with tasklist
        Suspicious use of AdjustPrivilegeToken
        
        PID:2560
    - - C:\Windows\SysWOW64\findstr.exe
        
        findstr /i /b "v4xqrsma.exe"
        5⤵
        
        PID:2248
    - - C:\Windows\SysWOW64\v4xqrsma.exe
        
        C:\Windows\system32\v4xqrsma.exe
        5⤵
        Executes dropped EXE
        Drops file in System32 directory
        Suspicious use of WriteProcessMemory
        
        PID:2468
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2468 -s 168
        6⤵
        Loads dropped DLL
        Program crash
        
        PID:2344
    - - 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:2524
- - 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:1400

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

Replay Monitor

Loading Replay Monitor...

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.bat

Filesize
238B

MD5
cbc305398dd7f272c7b788e0ce899599

SHA1
dc249bf238f78e528ee63634ddcfc0b7203603ba

SHA256
33537c3bf02f657a1bd8a21e43c463250468358e04948330d1ce16e1d26b0450

SHA512
80707b7ad486b855297f2991f67951d118f053536f81eec2e3d87d36c0185293923edb1be444346b42539424c32f046d6853f85abb2290d602755ea0abed663c

Download Submit
\Windows\SysWOW64\v4xqrsma.exe

Filesize
11KB

MD5
a3feca9ceee93eacd57ac33485cadecc

SHA1
8fb9c299de4517ab14165968b891bf117d43c754

SHA256
1b8ed464167fe9119209e5184e9206a6783daffb96ced01208d253459016c476

SHA512
c6e514b51a1f80012f316bc66e4eca2c10643655473022008f72b2d64ef3edcb5abb144e7b9e3c0c09ca4b178c28ba66ef624c11deceba0566ba210bbc799e35

Download Submit
memory/2080-0-0x0000000000400000-0x000000000040ECCF-memory.dmp

Filesize
59KB

Download
memory/2080-1-0x0000000000400000-0x000000000040ECCF-memory.dmp

Filesize
59KB

Download
memory/2080-12-0x0000000000400000-0x000000000040ECCF-memory.dmp

Filesize
59KB

Download
memory/2468-35-0x0000000000400000-0x000000000040ECCF-memory.dmp

Filesize
59KB

Download
memory/2720-19-0x0000000000400000-0x000000000040ECCF-memory.dmp

Filesize
59KB

Download
memory/2720-29-0x0000000000400000-0x000000000040ECCF-memory.dmp

Filesize
59KB

Download
memory/2720-39-0x0000000000400000-0x000000000040ECCF-memory.dmp

Filesize
59KB

Download
memory/2736-18-0x00000000000C0000-0x00000000000CF000-memory.dmp

Filesize
60KB

Download
memory/2764-34-0x0000000000130000-0x000000000013F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads