ramnit | aa50e821a2ea565d5b409ca6f7da2d0c507549b19c0fb130f0a8d3ad7016848b

Analysis

max time kernel
185s
max time network
191s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
25-11-2022 18:47

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General

Target

aa50e821a2ea565d5b409ca6f7da2d0c507549b19c0fb130f0a8d3ad7016848b.exe
Size

2.6MB
MD5

875bef404c53ce608bb70fe1bdf4d43d
SHA1

f9c9abfd3484ddd9b08fa3d0e17a737f3a6fc80d
SHA256

aa50e821a2ea565d5b409ca6f7da2d0c507549b19c0fb130f0a8d3ad7016848b
SHA512

4bb5d376e2410e1b913bf805b74cb481ef4897c08b55033152e8e31fe241f78c2dd1a8771192c1dead9566538e640cec7e346187c01186e6023b8c795e77ea8f
SSDEEP

49152:27yfyD2phLtaAGcoaNKIayOzRk1K03Cscw/j7iD/WlClxY9Go8ThJGDy:zDLQA8AONkX3tf2WlCTYUV9JQy

Score

10^/10

ramnit banker spyware stealer trojan upx worm

Malware Config

Signatures

Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
trojan spyware stealer worm banker ramnit

Executes dropped EXE 2 IoCs

pid	Process
1816	aa50e821a2ea565d5b409ca6f7da2d0c507549b19c0fb130f0a8d3ad7016848bSrv.exe
556	DesktopLayer.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0008000000012314-56.dat	upx
behavioral1/files/0x0008000000012314-59.dat	upx
behavioral1/files/0x0008000000012314-61.dat	upx
behavioral1/files/0x000900000001232d-62.dat	upx
behavioral1/memory/1816-65-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/files/0x000900000001232d-64.dat	upx
behavioral1/files/0x000900000001232d-67.dat	upx
behavioral1/memory/556-68-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Loads dropped DLL 5 IoCs

pid	Process
960	aa50e821a2ea565d5b409ca6f7da2d0c507549b19c0fb130f0a8d3ad7016848b.exe
960	aa50e821a2ea565d5b409ca6f7da2d0c507549b19c0fb130f0a8d3ad7016848b.exe
960	aa50e821a2ea565d5b409ca6f7da2d0c507549b19c0fb130f0a8d3ad7016848b.exe
1816	aa50e821a2ea565d5b409ca6f7da2d0c507549b19c0fb130f0a8d3ad7016848bSrv.exe
960	aa50e821a2ea565d5b409ca6f7da2d0c507549b19c0fb130f0a8d3ad7016848b.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\pxDA88.tmp	aa50e821a2ea565d5b409ca6f7da2d0c507549b19c0fb130f0a8d3ad7016848bSrv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	aa50e821a2ea565d5b409ca6f7da2d0c507549b19c0fb130f0a8d3ad7016848bSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	aa50e821a2ea565d5b409ca6f7da2d0c507549b19c0fb130f0a8d3ad7016848bSrv.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\SearchScopes	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{0EA0E9E1-6D3E-11ED-A955-CA7A4AEEC1E8} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "2"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "376199859"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
556	DesktopLayer.exe
556	DesktopLayer.exe
556	DesktopLayer.exe
556	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
436	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
436	iexplore.exe
436	iexplore.exe
108	IEXPLORE.EXE
108	IEXPLORE.EXE
108	IEXPLORE.EXE
108	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 960 wrote to memory of 1816	960	aa50e821a2ea565d5b409ca6f7da2d0c507549b19c0fb130f0a8d3ad7016848b.exe	28
PID 960 wrote to memory of 1816	960	aa50e821a2ea565d5b409ca6f7da2d0c507549b19c0fb130f0a8d3ad7016848b.exe	28
PID 960 wrote to memory of 1816	960	aa50e821a2ea565d5b409ca6f7da2d0c507549b19c0fb130f0a8d3ad7016848b.exe	28
PID 960 wrote to memory of 1816	960	aa50e821a2ea565d5b409ca6f7da2d0c507549b19c0fb130f0a8d3ad7016848b.exe	28
PID 1816 wrote to memory of 556	1816	aa50e821a2ea565d5b409ca6f7da2d0c507549b19c0fb130f0a8d3ad7016848bSrv.exe	29
PID 1816 wrote to memory of 556	1816	aa50e821a2ea565d5b409ca6f7da2d0c507549b19c0fb130f0a8d3ad7016848bSrv.exe	29
PID 1816 wrote to memory of 556	1816	aa50e821a2ea565d5b409ca6f7da2d0c507549b19c0fb130f0a8d3ad7016848bSrv.exe	29
PID 1816 wrote to memory of 556	1816	aa50e821a2ea565d5b409ca6f7da2d0c507549b19c0fb130f0a8d3ad7016848bSrv.exe	29
PID 556 wrote to memory of 436	556	DesktopLayer.exe	30
PID 556 wrote to memory of 436	556	DesktopLayer.exe	30
PID 556 wrote to memory of 436	556	DesktopLayer.exe	30
PID 556 wrote to memory of 436	556	DesktopLayer.exe	30
PID 436 wrote to memory of 108	436	iexplore.exe	32
PID 436 wrote to memory of 108	436	iexplore.exe	32
PID 436 wrote to memory of 108	436	iexplore.exe	32
PID 436 wrote to memory of 108	436	iexplore.exe	32

C:\Users\Admin\AppData\Local\Temp\aa50e821a2ea565d5b409ca6f7da2d0c507549b19c0fb130f0a8d3ad7016848b.exe
"C:\Users\Admin\AppData\Local\Temp\aa50e821a2ea565d5b409ca6f7da2d0c507549b19c0fb130f0a8d3ad7016848b.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:960
- C:\Users\Admin\AppData\Local\Temp\aa50e821a2ea565d5b409ca6f7da2d0c507549b19c0fb130f0a8d3ad7016848bSrv.exe
  C:\Users\Admin\AppData\Local\Temp\aa50e821a2ea565d5b409ca6f7da2d0c507549b19c0fb130f0a8d3ad7016848bSrv.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:1816
- - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
    "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:556
  - - C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of FindShellTrayWindow
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:436
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:436 CREDAT:275457 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:108

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Microsoft\DesktopLayer.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Program Files (x86)\Microsoft\DesktopLayer.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\aa50e821a2ea565d5b409ca6f7da2d0c507549b19c0fb130f0a8d3ad7016848bSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\aa50e821a2ea565d5b409ca6f7da2d0c507549b19c0fb130f0a8d3ad7016848bSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\L6RKMN49.txt

Filesize
601B

MD5
8b79b5c5e4ce5ee52e62634b8fd338ef

SHA1
7c61766baff1748c6f283830a239d5e38fa0e2fe

SHA256
a5bd46644c619694920df36c6391c4e140bdd86b4ca45ac25a7b8c40abc943b2

SHA512
b0024142043fc1cec91a170bbf64601c52bf24bbe5e4f990bf868d719b6546a9395939a1d76c055ad70cfa932e00fe782bdda57391b1572242c1c8f3edabdd00

Download Submit
\Program Files (x86)\Microsoft\DesktopLayer.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
\Users\Admin\AppData\Local\Temp\aa50e821a2ea565d5b409ca6f7da2d0c507549b19c0fb130f0a8d3ad7016848bSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
\Users\Admin\AppData\Local\Temp\nsoD941.tmp\ButtonLinker.dll

Filesize
7KB

MD5
dd85ac7d85c92dd0e3cc17dfd4890f54

SHA1
a128fb7a05965c1a9913c6f5e419e6c4c0a7d2fa

SHA256
27abd2a4fb1bf66add60221b52d061bbe24d2d21e13600725ff7a5c6c777b504

SHA512
e4ff8216c65110a9d156f37c2062acb53a72daa8af12dfc24278920d9e1a4083a81b1446759df75405b2da34c7bfb1afc33184feedd0aee4ed73f79fcbb1a8a1

Download Submit
\Users\Admin\AppData\Local\Temp\nsoD941.tmp\System.dll

Filesize
67KB

MD5
8fef2ddc02a88527acf5f875aa79590a

SHA1
b3ebe53a0037789c155992eee0547de1a76712b9

SHA256
5b06944f0b948937d87a68d0d584f8de8f169298f5db95336f55696079e88d50

SHA512
7f231356313b7aa4882bfd205529d65022397c91a5aab3658d655524aa3bfe855432ac35cd455f8750530e1b9582e71c710abb94d610ff1ec3e13d5a193d19de

Download Submit
\Users\Admin\AppData\Local\Temp\nsoD941.tmp\System.dll

Filesize
67KB

MD5
8fef2ddc02a88527acf5f875aa79590a

SHA1
b3ebe53a0037789c155992eee0547de1a76712b9

SHA256
5b06944f0b948937d87a68d0d584f8de8f169298f5db95336f55696079e88d50

SHA512
7f231356313b7aa4882bfd205529d65022397c91a5aab3658d655524aa3bfe855432ac35cd455f8750530e1b9582e71c710abb94d610ff1ec3e13d5a193d19de

Download Submit
memory/556-63-0x0000000000000000-mapping.dmp

Download
memory/556-68-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/960-69-0x0000000010000000-0x0000000010015000-memory.dmp

Filesize
84KB

Download
memory/960-70-0x00000000007C0000-0x00000000007EE000-memory.dmp

Filesize
184KB

Download
memory/960-54-0x0000000075D01000-0x0000000075D03000-memory.dmp

Filesize
8KB

Download
memory/960-72-0x0000000010000000-0x0000000010015000-memory.dmp

Filesize
84KB

Download
memory/960-73-0x00000000007C0000-0x00000000007EE000-memory.dmp

Filesize
184KB

Download
memory/1816-65-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1816-57-0x0000000000000000-mapping.dmp

Download