9013cd10369d0761258d5b85760a4726f3eacc2e27f1dbc73065518f08b4527b

General

Target

9013cd10369d0761258d5b85760a4726f3eacc2e27f1dbc73065518f08b4527b.exe
Size

403KB
MD5

e562ac082996cce8c048034efa3014db
SHA1

80ad2a6d9c4baa341ffea6aab6f715dee55c8772
SHA256

9013cd10369d0761258d5b85760a4726f3eacc2e27f1dbc73065518f08b4527b
SHA512

574757dbf94fe6d6e00a32b4dcd9445b4d39a2f0d94aa6fd8644ceabb6d36a9d1b237a4133bd2da25a8e09de3579d011f7bcb2ba2c3908fee4dfd3a349149694
SSDEEP

6144:3w9D91dOrcN3ZGXNYFNmIkYvUIelVjjVtGRyFH4x:gtRfJcNYFNm8UhlZGsex

Score

8^/10

bootkit persistence spyware stealer

Malware Config

Signatures

Blocklisted process makes network request 10 IoCs

Processes:

rundll32.exe

flow	pid	process
3	2672	rundll32.exe
5	2672	rundll32.exe
6	2672	rundll32.exe
7	2672	rundll32.exe
8	2672	rundll32.exe
9	2672	rundll32.exe
10	2672	rundll32.exe
11	2672	rundll32.exe
13	2672	rundll32.exe
14	2672	rundll32.exe

Deletes itself 1 IoCs

Processes:

osahx.exe

pid process

2536 osahx.exe
Executes dropped EXE 1 IoCs

Processes:

osahx.exe

pid process

2536 osahx.exe
Loads dropped DLL 6 IoCs

Processes:

cmd.exerundll32.exe

pid process

1840 cmd.exe
1840 cmd.exe
2672 rundll32.exe
2672 rundll32.exe
2672 rundll32.exe
2672 rundll32.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

pid	process
2536	osahx.exe

pid	process
2536	osahx.exe

pid	process
1840	cmd.exe
1840	cmd.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

rundll32.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Run\Dotx = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\qhehi\\djjhb.dll\",Verify"	rundll32.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

rundll32.exe

description	ioc	process
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
bootkit persistence

Bootkit
T1542.003

Processes:

rundll32.exe

description ioc process

File opened for modification \??\PHYSICALDRIVE0 rundll32.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

rundll32.exe

pid process

2672 rundll32.exe
Drops file in Program Files directory 2 IoCs

Processes:

osahx.exe

description ioc process

File created \??\c:\Program Files\qhehi\djjhb.dll osahx.exe
File opened for modification \??\c:\Program Files\qhehi osahx.exe

description	ioc	process
File opened for modification	\??\PHYSICALDRIVE0	rundll32.exe

description	ioc	process
File created	\??\c:\Program Files\qhehi\djjhb.dll	osahx.exe
File opened for modification	\??\c:\Program Files\qhehi	osahx.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

1608 PING.EXE

pid	process
1608	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

rundll32.exe

pid	process
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

rundll32.exe

description pid process

Token: SeDebugPrivilege 2672 rundll32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

9013cd10369d0761258d5b85760a4726f3eacc2e27f1dbc73065518f08b4527b.exeosahx.exe

pid process

1956 9013cd10369d0761258d5b85760a4726f3eacc2e27f1dbc73065518f08b4527b.exe
2536 osahx.exe

description	pid	process
Token: SeDebugPrivilege	2672	rundll32.exe

pid	process
1956	9013cd10369d0761258d5b85760a4726f3eacc2e27f1dbc73065518f08b4527b.exe
2536	osahx.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

9013cd10369d0761258d5b85760a4726f3eacc2e27f1dbc73065518f08b4527b.execmd.exeosahx.exe

description	pid	process	target process
PID 1956 wrote to memory of 1840	1956	9013cd10369d0761258d5b85760a4726f3eacc2e27f1dbc73065518f08b4527b.exe	cmd.exe
PID 1956 wrote to memory of 1840	1956	9013cd10369d0761258d5b85760a4726f3eacc2e27f1dbc73065518f08b4527b.exe	cmd.exe
PID 1956 wrote to memory of 1840	1956	9013cd10369d0761258d5b85760a4726f3eacc2e27f1dbc73065518f08b4527b.exe	cmd.exe
PID 1956 wrote to memory of 1840	1956	9013cd10369d0761258d5b85760a4726f3eacc2e27f1dbc73065518f08b4527b.exe	cmd.exe
PID 1840 wrote to memory of 1608	1840	cmd.exe	PING.EXE
PID 1840 wrote to memory of 1608	1840	cmd.exe	PING.EXE
PID 1840 wrote to memory of 1608	1840	cmd.exe	PING.EXE
PID 1840 wrote to memory of 1608	1840	cmd.exe	PING.EXE
PID 1840 wrote to memory of 2536	1840	cmd.exe	osahx.exe
PID 1840 wrote to memory of 2536	1840	cmd.exe	osahx.exe
PID 1840 wrote to memory of 2536	1840	cmd.exe	osahx.exe
PID 1840 wrote to memory of 2536	1840	cmd.exe	osahx.exe
PID 2536 wrote to memory of 2672	2536	osahx.exe	rundll32.exe
PID 2536 wrote to memory of 2672	2536	osahx.exe	rundll32.exe
PID 2536 wrote to memory of 2672	2536	osahx.exe	rundll32.exe
PID 2536 wrote to memory of 2672	2536	osahx.exe	rundll32.exe
PID 2536 wrote to memory of 2672	2536	osahx.exe	rundll32.exe
PID 2536 wrote to memory of 2672	2536	osahx.exe	rundll32.exe
PID 2536 wrote to memory of 2672	2536	osahx.exe	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\9013cd10369d0761258d5b85760a4726f3eacc2e27f1dbc73065518f08b4527b.exe
"C:\Users\Admin\AppData\Local\Temp\9013cd10369d0761258d5b85760a4726f3eacc2e27f1dbc73065518f08b4527b.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1956
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\osahx.exe "C:\Users\Admin\AppData\Local\Temp\9013cd10369d0761258d5b85760a4726f3eacc2e27f1dbc73065518f08b4527b.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1840
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - Runs ping.exe
    PID:1608
- - C:\Users\Admin\AppData\Local\Temp\osahx.exe
    C:\Users\Admin\AppData\Local\Temp\\osahx.exe "C:\Users\Admin\AppData\Local\Temp\9013cd10369d0761258d5b85760a4726f3eacc2e27f1dbc73065518f08b4527b.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Drops file in Program Files directory
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2536
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\Program Files\qhehi\djjhb.dll",Verify C:\Users\Admin\AppData\Local\Temp\osahx.exe
      4⤵
      Blocklisted process makes network request
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      Suspicious use of NtSetInformationThreadHideFromDebugger
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2672

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

\??\c:\Program Files\qhehi\djjhb.dll

Filesize
228KB

MD5
339d6a6a7722fcc7f21889f3ead9e7f6

SHA1
70643568ddc160e206213188c367f9b0e6f0caa9

SHA256
b2e1bc7cd357ddc6d368cd627e94dd237462b313a9a88eaec49361244132433c

SHA512
b989ef5d75ae44e6a15bb44a6001a93378beaa82f1c7c1db67eba9c858668dd63b0270ba2efe35eb02b7625ecc4a5ad74bff6ed5289301f3b752192d71ecfc07

Download Submit
\Users\Admin\AppData\Local\Temp\osahx.exe

Filesize
404KB

MD5
63c893dbf7d92079ae1024b0dbb6463e

SHA1
d554e88b58ac76d74165ce93535dc6dbdc711a19

SHA256
611a4ee5f851bfb830863a6732790d1ab486a43f4aaf314a7f6d4d5c2e8817be

SHA512
4305012d0d7b202b54f74c0a4ad25027a5e7003044b6146ee2fdc832a15dc573fefc3597021a680f87fff9d63768906ff7af8b0621e3566ecb5e77fd09664140

Download Submit
memory/1840-8-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/1840-7-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/1956-0-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/1956-2-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2536-9-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2536-11-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2672-17-0x0000000010000000-0x0000000010080000-memory.dmp

Filesize
512KB

Download
memory/2672-19-0x0000000010000000-0x0000000010080000-memory.dmp

Filesize
512KB

Download
memory/2672-18-0x0000000010000000-0x0000000010080000-memory.dmp

Filesize
512KB

Download
memory/2672-21-0x0000000010000000-0x0000000010080000-memory.dmp

Filesize
512KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads