ab630db6cf89867cc8037af5da08fa39259e671ef65fb4ecae35c015a633dbf7

Analysis

max time kernel
152s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
03-12-2022 23:18

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General

Target

ab630db6cf89867cc8037af5da08fa39259e671ef65fb4ecae35c015a633dbf7.exe
Size

238KB
MD5

da0d379af51fd10a8ca99b7ff84b2779
SHA1

97ba43eba04bda9ff3067f12f282bae22afbc62d
SHA256

ab630db6cf89867cc8037af5da08fa39259e671ef65fb4ecae35c015a633dbf7
SHA512

d3ef568950f5f201b134ac7de139ae053233aac76788fa8ea6fd83317d55100c473647774ee482f6525785420deb4b880ba1d747590d3905486cdc3d786e4235
SSDEEP

6144:5oSk2d/iP1FMxld3qac3TMfKC3XSTKGXylljag8dj:5oSk2d/iYld323TKFGX+BaHdj

Score

8^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

rekuy.exerekuy.exe

pid	Process
1192	rekuy.exe
4312	rekuy.exe

UPX packed file 6 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/4640-132-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/4640-136-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/files/0x0001000000022dea-139.dat	upx
behavioral2/files/0x0001000000022dea-140.dat	upx
behavioral2/files/0x0001000000022dea-143.dat	upx
behavioral2/memory/1192-144-0x0000000000400000-0x000000000040E000-memory.dmp	upx

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

rekuy.exe

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\Currentversion\Run	rekuy.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\Currentversion\Run	rekuy.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Ipgut = "C:\\Users\\Admin\\AppData\\Roaming\\Etunuk\\rekuy.exe"	rekuy.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

ab630db6cf89867cc8037af5da08fa39259e671ef65fb4ecae35c015a633dbf7.exerekuy.exe

description	pid	Process	procid_target
PID 4640 set thread context of 2060	4640	ab630db6cf89867cc8037af5da08fa39259e671ef65fb4ecae35c015a633dbf7.exe	80
PID 1192 set thread context of 4312	1192	rekuy.exe	82

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

rekuy.exe

pid	Process
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe
4312	rekuy.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

ab630db6cf89867cc8037af5da08fa39259e671ef65fb4ecae35c015a633dbf7.exe

description	pid	Process
Token: SeSecurityPrivilege	2060	ab630db6cf89867cc8037af5da08fa39259e671ef65fb4ecae35c015a633dbf7.exe
Token: SeSecurityPrivilege	2060	ab630db6cf89867cc8037af5da08fa39259e671ef65fb4ecae35c015a633dbf7.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

ab630db6cf89867cc8037af5da08fa39259e671ef65fb4ecae35c015a633dbf7.exeab630db6cf89867cc8037af5da08fa39259e671ef65fb4ecae35c015a633dbf7.exerekuy.exerekuy.exe

description	pid	Process	procid_target
PID 4640 wrote to memory of 2060	4640	ab630db6cf89867cc8037af5da08fa39259e671ef65fb4ecae35c015a633dbf7.exe	80
PID 4640 wrote to memory of 2060	4640	ab630db6cf89867cc8037af5da08fa39259e671ef65fb4ecae35c015a633dbf7.exe	80
PID 4640 wrote to memory of 2060	4640	ab630db6cf89867cc8037af5da08fa39259e671ef65fb4ecae35c015a633dbf7.exe	80
PID 4640 wrote to memory of 2060	4640	ab630db6cf89867cc8037af5da08fa39259e671ef65fb4ecae35c015a633dbf7.exe	80
PID 4640 wrote to memory of 2060	4640	ab630db6cf89867cc8037af5da08fa39259e671ef65fb4ecae35c015a633dbf7.exe	80
PID 4640 wrote to memory of 2060	4640	ab630db6cf89867cc8037af5da08fa39259e671ef65fb4ecae35c015a633dbf7.exe	80
PID 4640 wrote to memory of 2060	4640	ab630db6cf89867cc8037af5da08fa39259e671ef65fb4ecae35c015a633dbf7.exe	80
PID 4640 wrote to memory of 2060	4640	ab630db6cf89867cc8037af5da08fa39259e671ef65fb4ecae35c015a633dbf7.exe	80
PID 2060 wrote to memory of 1192	2060	ab630db6cf89867cc8037af5da08fa39259e671ef65fb4ecae35c015a633dbf7.exe	81
PID 2060 wrote to memory of 1192	2060	ab630db6cf89867cc8037af5da08fa39259e671ef65fb4ecae35c015a633dbf7.exe	81
PID 2060 wrote to memory of 1192	2060	ab630db6cf89867cc8037af5da08fa39259e671ef65fb4ecae35c015a633dbf7.exe	81
PID 1192 wrote to memory of 4312	1192	rekuy.exe	82
PID 1192 wrote to memory of 4312	1192	rekuy.exe	82
PID 1192 wrote to memory of 4312	1192	rekuy.exe	82
PID 1192 wrote to memory of 4312	1192	rekuy.exe	82
PID 1192 wrote to memory of 4312	1192	rekuy.exe	82
PID 1192 wrote to memory of 4312	1192	rekuy.exe	82
PID 1192 wrote to memory of 4312	1192	rekuy.exe	82
PID 1192 wrote to memory of 4312	1192	rekuy.exe	82
PID 2060 wrote to memory of 816	2060	ab630db6cf89867cc8037af5da08fa39259e671ef65fb4ecae35c015a633dbf7.exe	83
PID 2060 wrote to memory of 816	2060	ab630db6cf89867cc8037af5da08fa39259e671ef65fb4ecae35c015a633dbf7.exe	83
PID 2060 wrote to memory of 816	2060	ab630db6cf89867cc8037af5da08fa39259e671ef65fb4ecae35c015a633dbf7.exe	83
PID 4312 wrote to memory of 2292	4312	rekuy.exe	59
PID 4312 wrote to memory of 2292	4312	rekuy.exe	59
PID 4312 wrote to memory of 2292	4312	rekuy.exe	59
PID 4312 wrote to memory of 2292	4312	rekuy.exe	59
PID 4312 wrote to memory of 2292	4312	rekuy.exe	59
PID 4312 wrote to memory of 2320	4312	rekuy.exe	58
PID 4312 wrote to memory of 2320	4312	rekuy.exe	58
PID 4312 wrote to memory of 2320	4312	rekuy.exe	58
PID 4312 wrote to memory of 2320	4312	rekuy.exe	58
PID 4312 wrote to memory of 2320	4312	rekuy.exe	58
PID 4312 wrote to memory of 2400	4312	rekuy.exe	57
PID 4312 wrote to memory of 2400	4312	rekuy.exe	57
PID 4312 wrote to memory of 2400	4312	rekuy.exe	57
PID 4312 wrote to memory of 2400	4312	rekuy.exe	57
PID 4312 wrote to memory of 2400	4312	rekuy.exe	57
PID 4312 wrote to memory of 3064	4312	rekuy.exe	48
PID 4312 wrote to memory of 3064	4312	rekuy.exe	48
PID 4312 wrote to memory of 3064	4312	rekuy.exe	48
PID 4312 wrote to memory of 3064	4312	rekuy.exe	48
PID 4312 wrote to memory of 3064	4312	rekuy.exe	48
PID 4312 wrote to memory of 1328	4312	rekuy.exe	47
PID 4312 wrote to memory of 1328	4312	rekuy.exe	47
PID 4312 wrote to memory of 1328	4312	rekuy.exe	47
PID 4312 wrote to memory of 1328	4312	rekuy.exe	47
PID 4312 wrote to memory of 1328	4312	rekuy.exe	47
PID 4312 wrote to memory of 3216	4312	rekuy.exe	46
PID 4312 wrote to memory of 3216	4312	rekuy.exe	46
PID 4312 wrote to memory of 3216	4312	rekuy.exe	46
PID 4312 wrote to memory of 3216	4312	rekuy.exe	46
PID 4312 wrote to memory of 3216	4312	rekuy.exe	46
PID 4312 wrote to memory of 3316	4312	rekuy.exe	45
PID 4312 wrote to memory of 3316	4312	rekuy.exe	45
PID 4312 wrote to memory of 3316	4312	rekuy.exe	45
PID 4312 wrote to memory of 3316	4312	rekuy.exe	45
PID 4312 wrote to memory of 3316	4312	rekuy.exe	45
PID 4312 wrote to memory of 3380	4312	rekuy.exe	44
PID 4312 wrote to memory of 3380	4312	rekuy.exe	44
PID 4312 wrote to memory of 3380	4312	rekuy.exe	44
PID 4312 wrote to memory of 3380	4312	rekuy.exe	44
PID 4312 wrote to memory of 3380	4312	rekuy.exe	44
PID 4312 wrote to memory of 3520	4312	rekuy.exe	43
PID 4312 wrote to memory of 3520	4312	rekuy.exe	43

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:4692

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:3820

C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
"C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
1⤵
PID:3520

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:3380

C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
1⤵
PID:3316

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:3216

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
1⤵
PID:1328

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3064
- C:\Users\Admin\AppData\Local\Temp\ab630db6cf89867cc8037af5da08fa39259e671ef65fb4ecae35c015a633dbf7.exe
  "C:\Users\Admin\AppData\Local\Temp\ab630db6cf89867cc8037af5da08fa39259e671ef65fb4ecae35c015a633dbf7.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4640
- - \??\c:\users\admin\appdata\local\temp\ab630db6cf89867cc8037af5da08fa39259e671ef65fb4ecae35c015a633dbf7.exe
    "c:\users\admin\appdata\local\temp\ab630db6cf89867cc8037af5da08fa39259e671ef65fb4ecae35c015a633dbf7.exe"
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2060
  - - C:\Users\Admin\AppData\Roaming\Etunuk\rekuy.exe
      "C:\Users\Admin\AppData\Roaming\Etunuk\rekuy.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious use of WriteProcessMemory
      PID:1192
    - - \??\c:\users\admin\appdata\roaming\etunuk\rekuy.exe
        
        "c:\users\admin\appdata\roaming\etunuk\rekuy.exe"
        5⤵
        Executes dropped EXE
        Adds Run key to start application
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of WriteProcessMemory
        
        PID:4312
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmp58d360be.bat"
      4⤵
      PID:816
    - - C:\Windows\System32\Conhost.exe
        
        \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
        5⤵
        
        PID:3636

C:\Windows\system32\taskhostw.exe
taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
1⤵
PID:2400

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:2320

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2292

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp58d360be.bat

Filesize
307B

MD5
e51647ac580ca5e33690825abf50bc05

SHA1
3a5e4de7e512acc8c68ac0a824ffd48690fe026d

SHA256
6a13721b2236ff619729bf07afd478cfa8606e10b2ba8ba0891dd83a3429260c

SHA512
24c7c14cc4ab6e9e4d56078465385d880908596b8259363db9cdd8e79e0cc824f698b598974200f31e3dae31484d4733b641050791ced0849c7c53e6edb79b3e

Download Submit
C:\Users\Admin\AppData\Roaming\Etunuk\rekuy.exe

Filesize
238KB

MD5
bb3878f7b115083fb2d4ca02d34c5738

SHA1
5e1f9cad032f718a18d84ece24e8f9761ef916a3

SHA256
212119e62bbffc2ce9e12d2b7b8266bae30fb89c926c5eb540d49b0da3b0118f

SHA512
71e4da94d5071706578c9d7d5c8ef54807251dbc28d768847cd03dec530c33892124c01f09772008669b9c55cb360bbdff69c0fa319e08bdfe2037defdddaf9e

Download Submit
C:\Users\Admin\AppData\Roaming\Etunuk\rekuy.exe

Filesize
238KB

MD5
bb3878f7b115083fb2d4ca02d34c5738

SHA1
5e1f9cad032f718a18d84ece24e8f9761ef916a3

SHA256
212119e62bbffc2ce9e12d2b7b8266bae30fb89c926c5eb540d49b0da3b0118f

SHA512
71e4da94d5071706578c9d7d5c8ef54807251dbc28d768847cd03dec530c33892124c01f09772008669b9c55cb360bbdff69c0fa319e08bdfe2037defdddaf9e

Download Submit
C:\Users\Admin\AppData\Roaming\Etunuk\rekuy.exe

Filesize
238KB

MD5
bb3878f7b115083fb2d4ca02d34c5738

SHA1
5e1f9cad032f718a18d84ece24e8f9761ef916a3

SHA256
212119e62bbffc2ce9e12d2b7b8266bae30fb89c926c5eb540d49b0da3b0118f

SHA512
71e4da94d5071706578c9d7d5c8ef54807251dbc28d768847cd03dec530c33892124c01f09772008669b9c55cb360bbdff69c0fa319e08bdfe2037defdddaf9e

Download Submit
memory/816-149-0x0000000000D30000-0x0000000000D6B000-memory.dmp

Filesize
236KB

Download
memory/816-146-0x0000000000000000-mapping.dmp

Download
memory/1192-144-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1192-138-0x0000000000000000-mapping.dmp

Download
memory/2060-147-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/2060-137-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/2060-133-0x0000000000000000-mapping.dmp

Download
memory/2060-134-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/4312-141-0x0000000000000000-mapping.dmp

Download
memory/4312-150-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/4640-136-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/4640-132-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download